Voice loss also with signal OK

Hi,
I have an environment with WISM release 6.0 and 7921 with firmware 1.3.2. This is the issue that I have, when the signal from the AP on the phone display is around 2 step ( 5 step is full signal) the call remains active but the conversation becomes silent. Also when I have only 1 or 2 step of signal I receive the call ( the phone ring ) but I unable to take the call, the keyboard isn't working.
The controller has the DTPC enabled and on the phone the Tx Power is 14 dBm.
Any suggestion?
Thanks
Giovanni

Hi,
I update the WLAN configuration enhanced it with WPA2/AES, before I had only WPA/TKIP. Now seems that the situation has improved.
Before I got a lot of " Decrypt errors occurred for client xx:xx:cc:xx:xx:xx using WPA key on 802.11b/g interface of AP yy:yy:yy:yy:yy:yy , now I get a very few of these kind of messages
Regards
Giovann

Similar Messages

Mobile data network loss but with signal bars

i keep trying to send text messages or make phone calls but they keep failing and returning a message saying unable to connect to data network, i thought that only applied for internet services? its saying i have atleast 3 or 4 bars of signal when i do this. any ideas?

Have you searched for similar topics?
https://talk.sonymobile.com/t5/Xperia-Z3-Z3-Dual/lollipop-upgrade-mobile-data-doesn-t-work/m-p/96916...
All we have to decide is what to do with the time that is given to us - J.R.R. Tolkien

Loss of Reception/signal on 4S with iOS 6.1.1 update

Since updating to iOs 6.1.1, I have noticed on my phone and my fiancee's phone there has been a loss of reception/signal. As I thought this update fixes an issue that could impact cellular performance and reliability for iPhone 4S. But it looks as if it affected it to where I now no longer get all bars of signal as before the update my signal strength was excellent all bars lit up and receiving signal was excellent since the 6.1.1 update I no longer get a full signal, I get between 2 and 4 bars shown never 5 now since update. I think a fix update should be in order to correct the issue as before it was good now it is terrible. I know others also have been compaining about battery drain on iOS 6.1.1 but I have not seen that on mine or my fiancees phone just the signal strength does not go above 4 on either of our phones like as before they would sit at 5 in our house and anywhere we would travel. Has anybody else noticed that if so please let me know so I know I am not the only to see that since updating to iOS 6.1.1. Thanks and have a nice day.

Hi again, today's journey to the Apple store was worthwhile. Not only did I get a replacement phone, it was still under warranty, but also an explanation as to what may have caused the problem.
According to the technician who assisted me, as the upgrade from IOS 5.- to 6.- is quite large, in the transfer of information upgrade, apparently the programming data for wifi and Bluetooth connectivity was lost, which apparently sometimes happens, this being described as a freak occurrence. According to the technician, if this occurs, it becomes a hardware fault and there is no repair, replacement is essentially the only option. Fortunately as I was within the warranty period, on the spot replacement was available, already with IOS 6.- on it, so was informed that the same problem would not occur.
Upon arriving home, after a minor upgrade to 6.1.2 I was able to put everything back on to the phone so it ran like it did three or so weeks ago. The other advice given was to always hook up to iTunes via your computer to do the larger updates, those that increase in whole number, as those that increase incrementally are usually very minor and are usually an addition of data, not replacement.
I hope this helps others with their problem, mine in the end was resolved within ten minutes in-store. I dread to think what situation I would have been left in if I was not within the warranty period. Good luck to you all!

I have an IPA2 wifi 3g working fine with wifi up for 3 monthes then from two weeks it get connection but after 1 minutes stop to serf/download with signal and connection always present. With the same router are still connected others 3 pc working!

I all,
the scenario is the following:
WIFI connection with TISCALI operator. Encryption made by WPA2 EAS with router SITECOM or tested also with another router DIGICOM with WPA TPK.
From December up to end of March the IPAD2 working perfectly serfing and downloading.
By two weeks it has a very strange behavour without have changed any configuration on IPAD or network:
with WIFI turned on it discover about 4 different ntw among them the mine, I successfully authenticate with psw the my ntw,
the IPAD2 start to run with Safari without problems, but after about 1 minutes, it stop to serf or download and answer that the Server cannot be reached or the page cannot be open, at the same time the signal is present on the icon of WIFI and it is strong.
This problem is systematic: If I dissasociate the ntw and then authenticate again I start to serf again for 1 minutes (more or less) and then it stops again, this occurs every time I authenticate the ntw after a disassociation.
I made some test changing the encryption from WPA2, WPA and also without encryption but the result was always the same, after about one minute the server seems to be for the IPAD2 no more reachable while the others PC and netbook connected to the same router continue to serf/download without problems!
I also tried to change the router with a DIGCOM that I did not use generally, but the behavour is always the same.
Since the IOS was the 4.3 revisin, I made the upgrade by means Itunes to IOS 5.1 succesfully installed.
But unfortunatelly all test repeted have had the same negative result with the same behavour!
Yesterday I tried to do the complete restore of the System but the tests had the same rsult.
I really don't know how to proceed, the problem started suddenly without any action from my side....is there someone that can help me?
Thanks Massimo

Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Change the channel on your wireless router. Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
 Cheers, Tom

GNU compiled app crashes with signal 11: Segmentation Fault

Hi Community,
I know this is not a GNU oriented forum, but maybe this is a common issue.
We have a C++ multi-threaded application running properly in Solaris 9 Sparc. Due to some issues mostly related to the NICs we needed to have the application running in Solaris 10 x86. The problem is that the compilation is ok (always with GNU) but during run time, we have the application crashing in different instructions because of a signal 11.
It always crashes in a malloc call within the libstdc++.so.6
It was compiled with the option -mt and -lthread. Is this a known problem? Do you recommend any direction to start seeking for a solution?
Pls, find attached the gdb outcomes after the crash.
Thanks in advance, Pablo
quiterio{root}# gdb cord /usr/nguser/core
GNU gdb 6.6
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-pc-solaris2.10"...
Reading symbols from /lib/libsocket.so.1...done.
Loaded symbols for /lib/libsocket.so.1
Reading symbols from /export/home/mysql/mysql-5.0.51/lib/mysql/libmysqlclient.so.15...done.
Loaded symbols for /opt/mysql/mysql/lib/mysql/libmysqlclient.so.15
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/librt.so.1...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libthread.so.1...
warning: Lowest section in /lib/libthread.so.1 is .dynamic at 00000074
done.
Loaded symbols for /lib/libthread.so.1
Reading symbols from /usr/local/lib/libmysqlpp.so.2...done.
Loaded symbols for /usr/local/lib/libmysqlpp.so.2
Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /usr/local/lib/libstdc++.so.6...done.
Loaded symbols for /usr/local/lib/libstdc++.so.6
Reading symbols from /lib/libm.so.2...done.
Loaded symbols for /lib/libm.so.2
Reading symbols from /usr/local/lib/libgcc_s.so.1...done.
Loaded symbols for /usr/local/lib/libgcc_s.so.1
Reading symbols from /lib/libc.so.1...done.
Loaded symbols for /lib/libc.so.1
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /lib/libaio.so.1...done.
Loaded symbols for /lib/libaio.so.1
Reading symbols from /lib/libmd.so.1...done.
Loaded symbols for /lib/libmd.so.1
Reading symbols from /export/home/mysql/mysql-5.0.51/lib/mysql/libmysqlclient_r.so.15...done.
Loaded symbols for /opt/mysql/mysql/lib/mysql/libmysqlclient_r.so.15
Reading symbols from /lib/libpthread.so.1...
warning: Lowest section in /lib/libpthread.so.1 is .dynamic at 00000074
done.
Loaded symbols for /lib/libpthread.so.1
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
Core was generated by `/export/home/egasco/cord/cord'.
Program terminated with signal 11, Segmentation fault.
#0 0xfebd4ad2 in t_splay () from /lib/libc.so.1
(gdb) bt
#0 0xfebd4ad2 in t_splay () from /lib/libc.so.1
#1 0xfebd49b0 in t_delete () from /lib/libc.so.1
#2 0xfebd46ea in realfree () from /lib/libc.so.1
#3 0xfebd42ee in _malloc_unlocked () from /lib/libc.so.1
#4 0xfebd4138 in malloc () from /lib/libc.so.1
#5 0x080bdf64 in PMData::addData (this=0x818ae70, header=
{_M_t = {_M_impl = {<std::allocator<std::_Rb_tree_node<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<__gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<No data fields>}, <No data fields>}, _M_key_compare = {<std::binary_function<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::basic_string<char, std::char_traits<char>, std::allocator<char> >,bool>> = {<No data fields>}, <No data fields>}, _M_header = {_M_color = std::_S_red, _M_parent = 0x81ade48, _M_left = 0x81c2310, _M_right = 0x81ae900}, _M_node_count = 8}}},
data=0x81c1a20 "v=0\r\no=50 2890844526 2890842807 IN IP4 192.168.1.245\r\ns=SDP seminar\r\nc=IN IP4 192.168.1.245\r\nt= 0 0\r\nm=audio 9092 RTP/AVP 8 18\r\n", dest=ONEP_SIP) at PMData.cpp:23
#6 0x080b3a52 in UserCall::process_initialization (this=0x81c2630, packet=0x81ad128) at UserCall.cpp:505
#7 0x080b056f in UserCall::process (this=0x81c2630, packet=0x81ad128) at UserCall.cpp:132
#8 0x080791d7 in ONEPPacketManager::processPacket () at ActionNotAllowException.h:15
#9 0x080aa159 in onep_processing_thread (arg=0x8127e88) at CordApplication.cpp:1317
#10 0xfec34672 in _thr_setup () from /lib/libc.so.1
#11 0xfec34960 in L3_doit () from /lib/libc.so.1
#12 0xfe7e2400 in ?? ()
#13 0x00000000 in ?? ()

A crash in malloc in multi-threaded code could be a bug in the system malloc or a failure to use a thread-safe malloc. The default Solaris malloc in /usr/lib/libc.so.* is thread-safe.
A crash in malloc can also be caused by a heap corruption. Probably the most common causes of heap corruption are
- writing beyond the bounds of a buffer or variable (off by one, for example)
- deleting the same object more than once
- using an invalid pointer:
--- uninitialized
--- pointing to a deleted object
--- pointing to an out-of-scope object
- failure to guard a critical region
- failing to declare shared objects as volatile

IMac G5 (no isight) will not start up.. fsck exited with signal 8

I have a 4-year old iMac G5 running leopard. WIll I was on internet, the computer froze; I shut it down (forced, as nothing else was possible) and when I tried to start up again, it would not boot. I entered the single use mode (apple+s) and run /sbin/fsck -fy and the file was modified. When I repeated, i got the following:
/dev/rdisk0s3
root file system
verifying volume when it is mounted with write access
checking journaled HFS Plus volume
checking extents overflow file
checking catalog file
disk0s3: I/O error
invalid record count
(4, 42378)
volume check failed
dev/rdisk0s3 (hfs) EXITED WITH SIGNAL 8
I tried to run disk utility from install Leopard CD, but is also failed...
any ideas?
please provide any help as I do not know what to do.
many thanks in advance for your time and help

Your drive directory is sufficiently hosed that neither Disk Utility nor the fsck routine can correct it.
Instead, use DiskWarrior from Alsoft to attempt to rebuild it.

Voice over Wireless with Cisco phones 7921 and 7925

Hello experts,
I made an wireless audit for a company.
They have 2 WLCs 5508 in HA mode, with APs 2602 for indoor and 1552. Version of the WLC : 7.6.120.0
At the end of the day we noticed that the roaming between indoor and outdoor access points is sometimes failing and results to a complete disconnection of the wireless phone (7921 or 7925) from the network. When people go from the indoor to the outdoor area, there is no problem. The problem comes when people are coming from the outdoor to the indoor.
Also, on the WLC, the power lvl of the outdoor APs are set to 1 ... Is it good or not ?
My question is, is there any known issue about Voice over wireless with WLC 5508-7.6.120.0 with APs 2602 and 1552 ?
Maybe it should be better to upgrade to 7.6.130.0 ?
Thanks in advance,
Alexis

Normally yes.
Is there a way to troubleshoot what's going on with the phones ? Maybe a "show client detail MAC address* on the WLC ?
Here are some logs when the phones are losing the network :
*Dot1x_NW_MsgTask_4: Apr 09 12:44:21.320: #DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:957 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; KeyLen 40, Key type 1, client 00:24:d7:83:56:dc
*apfMsConnTask_6: Apr 09 12:28:32.668: #APF-3-VALIDATE_CCKM_REASS_REQ_ELEMENT: apf_utils.c:2506 Could not validate the CCKM Reassociation request element.Received Timestamp deviation > 1sec in CCKM Info Element from mobile. Mobile:4c:00:82:85:6e:e1, AP:1
*Dot1x_NW_MsgTask_1: Apr 09 12:26:53.964: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 74:26:ac:63:8c:a9 - got 00 00 00 00 00 00 00 03, expected 00 00 00 00 00 00 00 04
*Dot1x_NW_MsgTask_1: Apr 09 12:26:53.929: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 74:26:ac:63:8c:a9 - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 04
*apfMsConnTask_4: Apr 09 12:24:34.959: #APF-3-VALIDATE_CCKM_REASS_REQ_ELEMENT: apf_utils.c:2506 Could not validate the CCKM Reassociation request element.Received Timestamp deviation > 1sec in CCKM Info Element from mobile. Mobile:78:da:6e:f6:5f:89, AP:5
*Dot1x_NW_MsgTask_0: Apr 09 12:22:30.217: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 4c:00:82:85:1d:68 - got 00 00 00 00 00 00 00 03, expected 00 00 00 00 00 00 00 04
*Dot1x_NW_MsgTask_4: Apr 09 12:22:30.206: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 4c:00:82:85:b3:ac - got 00 00 00 00 00 00 00 03, expected 00 00 00 00 00 00 00 04
*Dot1x_NW_MsgTask_4: Apr 09 12:22:30.186: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 4c:00:82:85:b3:ac - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 04
*Dot1x_NW_MsgTask_0: Apr 09 12:22:30.167: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 4c:00:82:85:1d:68 - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 04
*Dot1x_NW_MsgTask_6: Apr 09 12:22:29.672: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 78:da:6e:f6:14:2e - got 00 00 00 00 00 00 00 03, expected 00 00 00 00 00 00 00 04
*Dot1x_NW_MsgTask_6: Apr 09 12:22:29.638: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:445 Invalid replay counter from client 78:da:6e:f6:14:2e - got 00 00 00 00 00 00 00 02, expected 00 00 00 00 00 00 00 04
*apfMsConnTask_3: Apr 09 12:19:22.098: #APF-3-VALIDATE_CCKM_REASS_REQ_ELEMENT: apf_utils.c:2506 Could not validate the CCKM Reassociation request element.Received Timestamp deviation > 1sec in CCKM Info Element from mobile. Mobile:4c:00:82:85:6e:e1, AP:5
*osapiBsnTimer: Apr 09 12:13:36.031: #LOG-3-Q_IND: spam_lrad.c:53542 The system is unable to find WLAN 2 to be deleted

I PXI 1010 with Digital Osci, RIO cards. Any simple projects to illustrate PXI with Signal Express and/or using Digital Osc.?

I have PXI 1010 with card for Digital Osc. Also have ELVIS. Any suggestions on oa simple project to illustrate applications of PXI - using Dig OSc and/or ELVIS. Any suggestions to illustrate PXI with Signal Express exercises. This is for undergraduates in EE Engg.

Hi, yes, that does help, thank you for your reply. Signal express does make it easy to work with multiple devices, as I am, though something seems to be amiss with the timing between cards. For example, setting Signal Express to do nothing more than log data at 100 pts/sec on all channels on all three cards (PCI-6289), and using the software trigger in Signal Express to start the digitization process, and the stop button, to stop data logging, certainly seems to be a very convenient solution. However, the longer I record (an hour seems to be enough time), the more likely that a signal recorded on all three cards, will not synch, point to point, (comparing signals recorded on channel 0 on all three cards, which I believe should be captured simultaneously through out the recording process, for example) and data recording does not stop simultaneously on all three cards. I can handle the data logging not stopping simultaneously, but my source signal apparently not being recorded synchronously is a whole other problem, and the impetus for my question. Thanks for the tip about NI-SCOPE, I was going to start working with that on a different project.
I am using the most recent versions of SignalExpress, NIDAQmx drivers, etc., on a PC running 64-bit windows 7.
regards,
Brian

Flash voice conference application with many users

Hi support,
We need to develop a flash voice conference application with using “flash media server”.
The number of connections can be up to 20,000. So please suggest is it possible with “flash media server”. Can it also possible with “Peer to Peer”.
If we use “flash media server” what configuration needed for.
You support will help us.
Thanks

Yes such kind of application is very much possible with FMS - with and without peer-to-peer. Peer to peer would save lot of bandwidth cost in long run.
But question of configuration is not pretty straightforward - it will depend upon requirements of your solution like how the traffic would be - whether it would be two way or one way , how high bit rates would be , whether it would be only audio or video too , whether one machine would suffice or you would have to go for bunch of them to load balance and many others.

EXITED WITH SIGNAL 4

does anybody know what this means EXITED WITH SIGNAL 4 after running fsck -fy? does it suppose to be this or it suppose to be SIGNAL 2?

sspott wrote:
** The volume Macintosh HD could not be repaired.
Looks to me like a fatal error on the hard disk. IMHO, the only solution is to boot from an external device, reformat the hard drive, and restore from backup. If you don't have a backup, you're in trouble. Boot from the external device, try to mount the int'l drive, and, if successful, back up as much as possible. Also, try running Disk Utility—it may be possible to fix it while booted from a different device, thought I wouldn't bank on it. At any rate, make sure to run an AHT afterwards, to check for possible hardware issues with the drive.
If the machine is still covered by AppleCare, take it to the store by all means. But they won't try to recover anything from the int'l drive, just check it, erase it if they don't find hardware issues, and re-install a fresh copy of the OS.
That's why you should always have at least 1 up-to-date backup (2, with one kept off-site, is better).

Voice mail issue with CUCM or CUCME

Hi,
I want to know a basic information regarding voice mail configuration in CUCM or CUCME.
With the very basic configuration of CUCM or CUCME without any unity or unity connection, is it possible to have basic voice mail features with the system. Say, I have configured call manager server with voice gateway connected to PSTN. Now is it possible to have voice mail for the system without cisco unity or unity connection configured.
Same goes for CUCME. We have CME bundled router configured. Can we configure voice mail with unity express without having separate license?
Please help ,e to get the answer for this query.
Regards,
Sagar

Hi Amer,
Thanks for your help. Is this same for both CUCM & CUCME?
For welcome greetings, I have configured its-CISCO.2.0.2.0.tcl in the VG. Can you please guide me about basicAA.tcl script, i want to give it a shot.
Regards,
Sagar

I can't install ADE on my PC, because as I try to open it a message of error appears to me: The application will be closed. I've already try with different browsers and also with the manual installation, but nothing..

I can't install ADE on my PC, because as I try to open it a message of error appears to me: The application will be closed. I've already try with different browsers and also with the manual installation, but nothing..

1
Close all iWork applications
2
Uninstall Keynote; this must be done with an application remover tool to delete the installation properly. Appcleaner is known to work correctly for this purpose, it is free and can be downloaded from here: Appcleaner Download
3
empty the trash
4
shutdown the Mac and restart. After the start up chime, hold down the shift key until the apple logo appears
let the Mac complete the start up procedure completely, it will take longer than usual as the hard drive is being repaired
5
Reinstall Keynote by logging into the Mac App Store using download / install

With my i phone 4 , the Push notifications doesn't work for apps like (fb viber , whatsapp etc ) it only works for the official apps like message even when im using the phone, has this probleme with the iOs 6.0.1 and also with the iOs 6.1

With my i phone 4 , the Push notifications doesn't work for apps like (fb viber , whatsapp etc ) it only works for the official apps like message even when im using the phone, has this probleme with the iOs 6.0.1 and also with the iOs 6.1

This isn't an issue. Notice the screen prior to the one that shows usage has an iCloud section and a Manage Storage button. For this button to activate ios needs to download a few kb from icloud. Switching back to this screen forces ios to download those few kb.

I have 2 computers (1 Pc and 1 MAC) and 1 Iphone.The I phone is synchronised with the PC. I want to synchronised it also with my MAC, without erasing all my music and files. Someone can help me to find the answer ?

I have 2 computers (1 Pc and 1 MAC) and 1 Iphone.The I phone is synchronised with the PC. I want to synchronised it also with my MAC, without erasing all my music and files. Someone can help me to find the answer ?
i have already try the copy/paste thing with the ID of the file "iTunes Music Library.xml" it didn't change a thing. each time I relaunched Itunes, the ID is the first I have in the MAC.
I have more than 5 000 files of music. I don't want to recreate one by one all my playlits.
Many thnaks for your answers.
Constance

You can sync iphone with one and only one computer at a time. If you sync to another, it will erase the current content and replace with content form the new computer. There is no way around this.
Put everything on one computer and sync from there.
BTW, you posted in the Home Share forum. Your question seems to have nothing to do with home share.

Hello, i'm Gabriele. One month ago, i have updated my iPhone 4 to iOS 7...why i did it??? UNUSABLE ( also with "reduce speed" in preference) but nothing...How can i donwgrade my iPhone 4 to whichever iOS 6? i can't afford to buy another iPhone...help me.

Hello, i'm Gabriele. I'm from Italy, i'm 16 years old. One month ago, i have updated my iPhone 4 to iOS 7...why i did it??? UNUSABLE ( also with "reduce speed" in preference) but nothing...How can i donwgrade my iPhone 4 to whichever iOS 6? i can't afford to buy another iPhone...help me please...I am willing to do anything. Apple 4Ever. Peace. Steve Jobs RIP.

Sorry downgrading isn't supported by apple.
You can try settings - general - reset - reset network settings.
take a look at this link http://osxdaily.com/2013/09/23/ios-7-slow-speed-it-up/

Voice loss also with signal OK

Similar Messages

Maybe you are looking for