Samsung SCH-LC11 getting very hot

My Samsung SCH-LC11 is getting extremely hot to the touch.  I'm also having the powering off issue.  I updated the firmware and turned power off when idle to never.
I have to say that I'm disappointed with this device!!!

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AraceliT_VZWSupport
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  • The service provided by the Samsung SCH-LC11 Mi-Fi device, and/or the 4G LTE service, is unusable.

    I got the Samsung SCH-LC11 Mi-Fi device and 4G LTE service from Verizon about one week ago here in the Chicago area.
    (Note: the first thing I did was update to the latest firmware (EF07) per the Samsung website.)
    I am using it with my AT&T iPhone 4 with "Cellular Data" on the phone turned off completely.
    I ran all the speed tests, 10 megabit up/down, wow, great.
    Unfortunately, there are at least two major problems with it:
    1)  I noticed almost immediately that push emails stopped coming to my iPhone after a few minutes.
    After looking into this in more detail I realized the following:
       a)  The modem inside the Mi-Fi device is being assigned a 10-Net / "carrier-grade NAT" IP address, not a real Internet IP address.  Fine, I don't really care as long as it works.  I am not trying to use a VPN, or do VoIP, or run some webcam somewhere.  In other words I'm not a "revenue leak" in Verizon "parlance" (I worked at Motorola during the OBEX fiasco days), but it's nice to know I'm being treated as such right off the bat.
       b)  The "carrier grade NAT" appears to have a TCP timeout of no more than two minutes.  I verified this by opening a telnet session to somewhere and not typing something for two minutes.  After the two minutes I typed another character, but it never got echoed back and the connection was dropped.  After waiting only a minute and a half, it lagged a little but sprang back to life.
       c)  Problem is, push email relies on having an open TCP connection that is idle the vast majority of time.  When an email comes in, the Exchange ActiveSync server sends a message back out to the device (over the existing connection) saying the mailbox has changed.  Unfortunately, after two minutes of idle, the "carrier grade NAT" has dropped the translation entry a long time ago, so the connection is dead.
    So I emailed support about this.  (the ticket is "WFM87599752").
    In the first round they told me to go look in the device's settings @ http://192.168.1.1.  Yeah, did that already.
    In round two, they blamed the dormancy timer.  That's obviously not it, since the modem is layer two and knows nothing about TCP at all.  Just to be sure though, I performed the test again, but this time I had a DOS window pinging Yahoo repeatedly so the modem wouldn't become dormant.  Problem still happened.  I saved the Wireshark PCAP here so anyone can see:  http://home.comcast.net/~abcbwtxyz/two_minutes.pcap  Frame #339 is where I try to type again, never to hear back.
    2)  The other problem is that as soon as a second person connects to the Mi-fi device over Wi-fi, the first person gets dropped almost immediately, and can't even reconnect again afterward.  I mean, really?  Made this video to illustrate:  http://www.youtube.com/watch?v=Iadz4DGXFRM
    So, can someone help?  I know I'm not the only one having these problems; I sent the support alias the following links just as examples, there are many more:
    http://himself.wordpress.com/2011/04/30/verizon-wireless-issuing-private-ip-addresses-to-3g-customers-class-a-nat-joy-and-gross-ineptitude-verizon-wireless-3g-fraudulent-enticement/
    http://www.broadbandreports.com/forum/remark,26067018
    http://www.droidforums.net/forum/droid-x-tech-support/101185-droid-x-verizon-3g-assigning-10-nat-ips.html
    -Chris

    So just to follow up on this.  I called to cancel today.  The CSR wanted me to talk to tech support about my problems and talk me out of cancelling so I said fine.  Summary of conversation:
    1)  Immediate acknowledgment that the two minute timeout of idle connections is by design, and no dispute that it breaks push email.
    2)  Disagreement with the claim that a second person logging on kicks off the first, even though I offered proof.  Dismissed my point that other people have seen the same exact thing, saying that if you look up problems other people are having on the Internet, people say anything and everything.
    Anyway, I continued with the cancellation; to their credit, they waived the activation fee and credited me for "time served", so I won't owe anything.  I did appreciate that.

  • Samsung SCH-LC11 4G MIFI mobile hotspot - First Impressions #2

    Yesterday, I received two Samsung 4G MIFIs to add to our corporate plan.  These are also to serve as test units for evaluation for a possible upgrade of our 14 other 3G data lines (PCMCIA). Here are my first thoughts and impressions regarding this device.  I apologize in advance for the length of the post and some of the more simple descriptions that might not need to be included.  I've found that sometimes these minor steps become helpful to others with troubleshooting issues.  I've found that they sometimes end up as "AH HA!" moments.
    Out of the box:  As soon as I opened the box, I was impressed by the size and styling of the adapter.  Having not used or even seen one in person, it was a bit smaller than I was expecting.  It's certainly small enough to fit into a shirt or pants pocket. For those that have not seen one, it's approximately half the height of a pack of cigarettes lying down.
    Initial Setup:  In general, this couldn't have been much simpler.  After following the basic instructions (install battery, power on, connect and login), it was ready go.  No activation phone number to call like I'm used to.  *Reading other posts, it looks like these adapters don't always come pre-configured like mine was.  It already had the SIM card installed and was ready to go.  This must be a friendly service my local distributor does.
    I love the fact that this unit does not need VZAccess Manager to run.  Simply plugging the USB cable into a laptop will start charging the battery without putting it into a "single user" mode like other adaptors do.  This simplifies things for IT administrators, as you don't have to explain multiple scenarios for how to use the device.  Plus there are fewer options for the end user to mess things up. 
    Advanced Setup: This is where things start getting fun.  My first task was to change the SSID and security key.  I navigate over to the Network->WIFI tab. It took me a minute to figure out the whole profile thing, but when I went to make my changes on the "Manual Configuration" side, something still seemed out of place.  I had drop down menus that didn't have any text in its fields.
                      Blank Field
    This lead to a bit more confusion as to how the profiles worked.  I decided to change things up and switch from IE 8.0.7601 to FireFox 4.0.  Using FireFox, everything looked in place.  I proceeded to configure the settings and then selected "apply".  Apparently this wasn't the option I needed as all my settings reverted back.  It looks like you need to select "Update Profile" first before applying the active profile.  Great, now we are up and running! 
    Note: Both of my devices are running AP/Modem firmware: EC04
    Speed Test:  Curious to see how these new devices performed, I ran a number of speed tests while connected.  My area has yet to be 4G enabled, so I wasn't expecting much in terms of an improvement with the 3G.  On average I was getting 1mbps down and 500kbps up.  This is actually slower than our current 3G cards that average 1.5mbps down and 768kbps up.  Hopefully we get the 4G service sooner rather than later. 
    Deal Breaker:  VPN.  For my company, we use Windows VPN access.  I spent a little time trying to connect to the VPN with this adaptor.  For some reason I could not get past the authentication.  I tried from multiple machines, using different OSes, still no luck.  I contemplated making some changes on the server side, but decided against it as all other VPN connections (including 3G adaptors) were fine.  That led me to these forums in search of an answer.  More specifically, the current post on the exact same issue I was seeing.
    http://community.vzw.com/t5/4G-Discussion/Samsung-SCH-LC11-Blocks-Microsoft-VPN/td-p/489618
    I will do some additional testing, including some changes on the VPN server, but might have to send these back.
    Summary:  They look like great little devices, but in my opinion, are currently not quite suited towards some business environments.  This could perhaps change with a firmware update or two.

    Sorry to take so long to reply....  I now have a support community set up at http://www.netsubnet.com, or you can touch the support button on the SETUP tab inside of HotSpotSam.
    Yes, that's the second request for signal strength, so it's on the planned feature list.  I'm currently working on integrating the real artwork so that it's easier to see the current status - and the app looks a lot better too.
    Next up is putting the status messages into a real log so if there's a problem or you just want to see what the app has been doing, you can scroll through it.
    Also, I'll be putting the most common questions into an in-app help screen.
    Then I'll work with the artist on the best way to show the signal bars on the main screen.  The RSSI number on the INFO tab is the Received Signal Strength Indication (see http://en.wikipedia.org/wiki/Received_signal_strength_indication) ie "Signal Strength" so the info is out there just need to display it.
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  • Samsung SCH-LC11 4G WIFI Standby

    I know this is a result of the awful firmware with the device and want to see if anyone has figured out a fix.
    My Samsung SCH-LC11 unit locks up and Green Light under the WIFI button stays constantly lit. In the manual it says that it is in Standby mode.
    How do I get this to stop ?
    Thanks....

    Hello,
    Based on the user manual, simply press the power button to get it out of standby mode. After 30 minutes of inactivity, the device will go into standby mode.  Please view the link below for access to the user manual:
    User Manual
    Samsung 4G LTE Mobile Hotspot SCH-LC11 Support
    Thank you.
    KellyW@VZWSupport

  • In my macbook pro 15 inch mid 2012 model, my cpu and gpu will get very hot, when gaming or rendering sometimes over 200F. The fans only spin at max about 2900 rpm, when their max is 6400. I downloaded a fan control app, but how can i fix it?

    In my macbook pro 15 inch mid 2012 model, my cpu and gpu will get very hot, when gaming or rendering sometimes over 200F. The fans only spin at max about 2900 rpm, when their max is 6400. I downloaded a fan control app, but how can i fix it?

    Hi rhaughan,
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    Mac notebooks: Operating temperature - Apple Support
    http://support.apple.com/en-is/HT201640
    While there are third-party utilities that measure the temperature of a notebook computer, it is important to understand that these utilities are not measuring the external case temperature. The actual case temperature is much lower. Never use third-party applications to diagnose possible hardware issues—instead, contact Apple or go to an Apple Retail Store or Apple Authorized Service Provider.
    You should also see this article for even further information about your fans:
    Learn about the fans in your Mac - Apple Support
    http://support.apple.com/en-is/HT202179
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  • MacBook not going to sleep and getting very hot

    I just purchased a MacBook and have been using it for a few days. I have noticed that it does not appear to go to sleep correctly and gets very hot in the process. I finished working on my MB about 45 minutes ago. At the time it was connected to the mains and I disconnected to catch my next train. I shut the lid and after a few minutes the sleep indicator light at the front dimmed once then stayed on permanently. I could not hear the drive spinning (though the drive is quiet on this machine and there was a lot of background noise) and assumed all was OK. Anyhow, I have just taken the MB out of its case some 45 minutes later and it felt extremely hot (almost too hot to touch, I would guess around 50ºC). The sleep indicator light on the front was solid white. I opened the lid and the machine woke up. Something not right here....Also power remaining was down to 72% so something has been using up a lot of energy and heating up the aluminium!
    Tony
    ps. Whilst writing this email the MB has cooled down considerably but still warm.
    ps2. Probably not related, but I have firmware password protection enabled
    null

    I did see some of the other posts, but nothing about the MB getting so hot.
    I tried sleep from the menu and this seems to work (though I have rebooted the machine since the above report).
    What worries me is the potential fire risk/damage to the MB, the case was extremely hot.
    Tony

  • My iPhone 3GS will hold a full charge for only a short time, and gets very hot when not in use in my shirt pocket.  Any ideas?

    My 3GS iPhone will not hold full charge for very long.  It gets very hot in my shirt pocket even when hot in use.  Any ideas?

    Double-tapping the home button does not show apps that are running.  This is not a task manager, it is merely a list of recently used/accessed apps.
    Basic troubleshooting of the device is reset, restart, restore.  Has a reset or restore been tried?
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  • I am using a white 13inch 2009/10 macbook, purchased in the US. Am currently using it in the Philippines, where it is 220v. I know my adapter says it works from 100-240v, but is it okay to use longterm? I think my mac gets very hot now? thanks

    I am using a white 13inch 2009/10 macbook, purchased in the US. Am currently using it in the Philippines, where it is 220v. I know my adapter says it works from 100-240v, but is it okay to use longterm? I think my mac gets very hot now? thanks

    All Apple power supplies work world-wide with the proper plug adapter.
    I have my MacBook plugged into the grid all the time, 24 hours a day w/o any problems.

  • Battery gets very hot during use and doesn't last long, fan runs at high speed, computer won't shut down

    Macbook Air isn't a year old and I don't leave it plugged in ever. The battery might last 2 hours and gets very hot. In addition the fan runs at a very high speed. The computer won't shut down in a normal way. I have to hold the power button down to shut it off. Can someone suggest something please.
    Thanks.

    Runaway applications can shorten battery runtime

  • TS1713 my power adapter gets very hot on my mac book pro is this normal

    my power adapter gets very hot to toutch on my mac book pro is this normal

    Hot is normal for the charger but very hot is not. If it were mine It could be that your MBP is drawing too much current. I would take it to the Apple Store and have it checked out.
    Allan

  • The power adapter gets very hot.  Any suggestions?

    The power adapter part that plugs into the computer gets very hot.  I have replaced the battery and replaced the power adapter.  It also has a hard time connecting and recharging the battery.  Is it possible to change out the plug in part in the computer and is it expensive?  Does it sound like this is what is needed to fix it?  Its about 3 years old.  Any suggestions would be appreciated.  Thanks.

    Hot is normal for the charger but very hot is not. If it were mine It could be that your MBP is drawing too much current. I would take it to the Apple Store and have it checked out.
    Allan

  • AC adapter gets very hot

    I have a new Thinkpad Edge e530.
    The adapter gets very hot when the battery is charging.  Not so hot that I can't hold it, but still, very hot.
    Relevant specs:
    * Adapter:  65 W
    * Battery:  "the bigger one" (6 cell LI Bat-75+,62WH)
    * Graphics:  integrated, not discrete
    With the bigger battery, am I supposed to have the bigger (90 W) adapter?
    Is the amount of heating I'm experiencing (very hot, but not too hot to touch) enough to be of concern?

    Hello dbuser!
    Welcome to the Forums Community! How long have you experienced the A/C Adapter getting hot? Were you using a different battery before the 6 cell?
    According the the e530 Personal Systems Reference the 65W Adapter is the correct adapter for the 6 cell battery. It is possible that you have a defective adapter. Does the adapter make any noise, buzzing or cracking sound? If it is making any noise there is a definete issue with the adapter you are using.
    All Lenovo Products come with a 1 Year Limited Warranty, if you would like to have more indepth troubleshooting, do not hesitate to contact your support center. You can verify your warranty status here.
    Thank you for being a part of the Lenovo Family,
    Catie
    Did someone help you today? Press the star on the left to thank them with a Kudo!
    If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
    Donate KUDOS and Click "Accepted Solution"

  • HT3371 When I plug in the computer to charge, the light is green for a minute and then turns red and the plug gets very hot.  It's not the plug as it works on other computer.  Why won't my computer charge?

    When I plug in my MacBook Pro to charge, the light is green for a minute and then it turns red and the plug gets very hot.  The plug works fine on another computer and charges it.  Why won't my MacBook Pro charge?

    You performed all of the steps outlined in this link?
    http://support.apple.com/kb/TS1567
    You uninstalled and reinstalled iTunes?
    GB

  • I got my 2nd iphone 5s brand you, it s getting very hot after 10 min of usage

    I got my 2nd iphone 5s brand you, it s getting very hot after 10 min of usage

    It means take it back to where you bought it from. If you don't want to do that you'll have to be more specific like how long you've had the phone and how you are using the phone when it gets hot. That kind of information. The more we know about the phone the easier it is to diagnose and offer suggestions.

  • My I touch gets very hot when charging, and it won't turn on.  I've tried all the resets/fixes and it does not respond.  Any Ideas?

    I have tried charging my itouch on the computer, in a docking station, and it gets very hot.  It won't turn on, even after trying all the resets I've read on this site.  Any ideas what the problem is?  Is it fixable?

    Hey Halefarm, What happens if you connect directly with the charging source with your cable, no docking station? Since resetting did not help, try connecting directly with the cable to your power source and your iPod. Next  try a different cable, there could be a short in the one you are currently using. If still will not charge correctly, I'm leaning in the direction of a failing battery. Set up an appointment to have your iPod evaluated by Apple. Have your iPod evaluated for possible battery issues. Take the cable and dock and have them tested as well. If it is a failing battery, you choices are; replace the battery, either through Apple or third party shop. Replace it yourself, if you can. Or,  you look into getting a new iPod. I don't have the cost of a new battery for an iPod 3, but I'm sure it's under $100. Check with Apple for exact pricing. Good luck, Cheers.

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