Yoga 10 wifi and GPS problem

Hi Community,
I bough a few days ago a YOGA-10 tablet (system data below).
I'm facing two problems :
a) My wireless is very poor. I'm often out of wifi coverage and everyone around, with other devices, work fine.
b) I need the Yoga-10 to test GPS based apps.
However GPS is failing too often.
I also use MobiWIA GPS Status & Toolbox app and, in a 50km's trip with my Yoga in the front seat, I get 0 satelites fixed (although 10-11 visible) on 80% of the time (all other devices get 100% coverage).
Any suggestion ?
Btw, as far as I understand, Yoga-1 does not support Glonass satellites, right ?
Thank you in advance
Solved!
Go to Solution.

Hi. I have YOGA 8 tablet(B6000) and I really love this tablet. but its GPS doesnt work
I installed "gps status and toolbox" from Play Store but the problem still exists
plz help me

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Yoga 13 WiFi and bluetooth issue resolved

Unfortunately, I also met WiFi problems, but also found unexpected and sad solution.
Wifi worked pretty well at working place, but had problems at home. As an experiment I brought WiFi router from the working place home. It did not work!
At home I used pretty old keyboard and mouse plugged into passive USB hub. As soon as they were disconnected, problems disappeared. WiFi was also stable after I plugged power supply into the USB hub.
We are making 24-bit analog-to-digital converter that connects to the PC via USB. I exactly know its current consumption (300 to 330 mA) and know that it correctly handles USB rules about power regulations. Maximum current, specified by USB2.0 standard, is 500mA, so consumption of our ADC is within limits. As soon as I plug this ADC in, WiFi connection immediately disappears at the working place.
In the case of other devices, such as USB flash drive, power consumption may depend on the activity, increasing as it writes or reads something, and decreasing at the moment of inactivity.
I'm pretty sure that Lenovo placed their WiFi/bluetooth module on the same USB hub with right-side USB2 connector. Any device, that requires energy, being plugged into USB2.0 port, immediately destroys WiFi (and presumably bluetooth) and it is rather hard to get it back alive without special dancing around.
So, conclusion: never plug anything into USB2.0 port, if you need WiFi. This decreases number of available USB ports from two to one. Lenovo team should be blamed for that, not driver manufacturers or board manufacturers - Lenovo did non do its construction job well.
I am not sure, that all WiFi and bluetooth problems of Yoga discussed at this forum have the same reason. But in any case incorrect implementation of USB2.0 power should be considered before any other reason of malfunction.
Car manufacturers recall their products in the case of a failure. What about computer manufacturers?

Citation from Wikipedia:
The USB 1.x and 2.0 specifications provide a 5 V supply on a single wire to power connected USB devices. The specification provides for no more than 5.25 V and no less than 4.75 V (5 V ± 5%) between the positive and negative bus power lines. For USB 3.0, the voltage supplied by low-powered hub ports is 4.45–5.25 V.[61]
A unit load is defined as 100 mA in USB 2.0, and 150 mA in USB 3.0. A device may draw a maximum of 5 unit loads (500 mA) from a port in USB 2.0; 6 (900 mA) in USB 3.0. There are two types of devices: low-power and high-power. A low-power device draws at most 1 unit load, with minimum operating voltage of 4.4 V in USB 2.0, and 4 V in USB 3.0. A high-power device draws, at most, the maximum number of unit loads the standard permits. Every device functions initially as low-power — but may request high-power, and get it if available on the providing bus.[62]
Obviously, WiFi adapter is a high-power device. If it does not have sufficient power, it will start power saving program by reducing speed. Even lower power may interrupt ins basic functions. When I connect another high-power device (HDD or ADC) to the same hub, it should get its 500mA from the hub. Seems that starting at this moment WiFi receives much less current than it requires and stops working.
If something is plugged into USB3 port, and this something does not utilize all energy it requested, WiFi starts working again.
I would greatly appreciate if somebody repeats my tests using Yoga or Yoga 2 Pro.
Test:
Reboot your system, all USB devices disconnected
Open http://www.speedtest.net site and measure Download connection speed (Speed1)
Connect external HDD to USB2 (NOT USB3!) port
Wait until HDD is connected
Test Download speed once again (Speed2)
Report results to this blog as Speed1/Speed2 couple of numbers
Thank you in advance

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I do apologize you are having trouble with your device I looked in our information system on the LG Ally in reguards to issues you are having it states if you have the Free Droid Security anti virus protection application down loaded it will cause the phone to lock up or freeze. Check and make sure you do not have the application on your device. Check you GPS settings and make sure correct. Go to Settings; Location & Security; make sure GPS is on wireless network. If this does not fix issue you can try doing a Master Reset on your device. Make sure your contacts are saved in your G-mail account or through Back Up Assistance.
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From the main screen, touch menu tab
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Touch Privacy
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Your Google account
System and application data and settings
Downloaded Applications
It will not erase: Current System software and bundled applications; SD Card files, such as music or Photos
Factory Reset option 2 - Warning this will reset device back to original factory settings.
Turn off the phone
Press and hold "home" + "end" + "volume up or down" keys together for a few seconds when the device is power off
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or
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hi all,
first of all sorry for bad english German you know :o)
my Iphone ist 3GS with 4.3(8F190) Modell MC139DN
i resetet the Network and also i resetet the hole Iphone and startet new with the last backup.
by the way, 3 month ago it helps when GPS signal was very poor
but still.... wifi is working ONLY 1 m in front of the server /___sbsstatic___/migration-images/migration-img-not-avail.png from 2 m up no signal AND then SWITSHING TO 3G
and
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Best regards from Germany
and any how have a good time

hi all,
first of all sorry for bad english German you know :o)
my Iphone ist 3GS with 4.3(8F190) Modell MC139DN
i resetet the Network and also i resetet the hole Iphone and startet new with the last backup.
by the way, 3 month ago it helps when GPS signal was very poor
but still.... wifi is working ONLY 1 m in front of the server /___sbsstatic___/migration-images/migration-img-not-avail.png from 2 m up no signal AND then SWITSHING TO 3G
and
GPS /___sbsstatic___/migration-images/migration-img-not-avail.png ist also not working proper what means :
the apple app "maps" ist getting the signal lets say every 5 to 10 min end the blue dot is jumping to the next point of the map afer 20 minits the iphon is no longe abel to show a card /___sbsstatic___/migration-images/migration-img-not-avail.png/___sbsstatic___/m igration-images/migration-img-not-avail.png
with navigation software ( i use it for horse riding on large tours, saiyling and car driving in differet apps: no signal ( and Working) at all /___sbsstatic___/migration-images/migration-img-not-avail.png
Best regards from Germany
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Hi dendie701,
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http://support.lenovo.com/en_EG/downloads/detail.page?DocID=DS031019
http://support.lenovo.com/en_EG/downloads/detail.page?DocID=DS031021
http://support.lenovo.com/en_EG/downloads/detail.page?DocID=DS031020
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Hi and Welcome to the Community!
tRiTiO wrote:
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tRiTiO wrote:
2. When I call other person I hear perfect, but the other person hears me well until I move a little, for example, I have spoke next to the microphone and the other person listen really well, but I move 3 inches and don't hear anything or far...
Unless you are in speakerphone mode, this might well be normal. The microphone is designed to filter out ambient noise, and moving away from it would start to blend your voice into the ambient noises, which could be subject to then being filtered out.
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Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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WiFi and GPS - Data Usage

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Hondalewis05 wrote:
No I think you misunderstand me, my password is correct but my phone is not accepting it. For app purchases it works fine but trying to link to imessage and it doesn't allow it .
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Delete your backup and try again.
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Yoga 10 wifi and GPS problem

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