My girlfriend got angry with me and had my phone in her hands. Result: Flying S4 crashes with wall and turns off.
When i turned it on, i noticed it won't connect to the network, and that it has some kind of "micro-freezes" (every 5 seconds, it will freeze for 0.3 seconds).
I brought it to my telephone company service center (as the phone hasn't any fall sign, nor is it damaged). When they first take it, in front of me, they type *#06*, and notice the IMEI says "null". Then they tell me that this is a sign that i tried to root or modify the phone, so the warranty won't cover any fix. They still keep the phone to analyze it.
Some hours after that, i receive an email saying that the phone is ready to pickup. When i go, they repeat that as the IMEI is null they cannot do anything. They also factory-reseted the phone as they always do when analyzing them. (i'm sure they didn't open the phone to check if something was broken, as they take more time when doing this)
So i have two questions:
Has the "micro-freezes" problem have anything to do with the IMEI being null? or is it a problem with broken motherboard? (also the phone will heat a lot when charging, more than normal)
Is there any way to recover the IMEI?
Thanks a lot for your help.
I personally don't think the micro-freeze is related to the IMEI. You should monitor the CPU activity. There can be a component failure, which makes the phone freezing due to drivers and component failure. Just saying....
demlasjr said:
I personally don't think the micro-freeze is related to the IMEI. You should monitor the CPU activity. There can be a component failure, which makes the phone freezing due to drivers and component failure. Just saying....
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Click to collapse
I also doubt it could be related to that. What application should i use to monitor the CPU activity?
Thanks for replying.
soylomass said:
I also doubt it could be related to that. What application should i use to monitor the CPU activity?
Thanks for replying.
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Click to collapse
Try with System Monitor Lite: https://play.google.com/store/apps/details?id=com.cgollner.systemmonitor.lite&hl=en
You can also install Android System Info: https://play.google.com/store/apps/details?id=com.electricsheep.asi&hl=en
With ASI you can check the log, or you can also connect the phone to the pc and monitor through ADB. But with that app you need nothing. Check the logs, there are lines related with the freeze.
Back in March when my S3 was freezing due to sudden death, I had lines in the log related with the freeze, I shown it to the Samsung tech and they replaced my phone's motherboard. Check the line and post here the log, we may help you detect the issue.
Related
During synchronisation, I found that the screen in my HD had gone blank. It could still receive calls. A soft reset didn't solve it. I rang HTC support, and all they could say was to send it in for repairs.
I then used mDesktop to look at the screen from my PC. It seemed there were some programs still to be installed. After installing these, I did a Sprite backup. This must have fixed the registry as the machine came to life during the reset.
I'm just leaving this in case someone else has this problem.
There's a way out.
I wrote too soon. Blank again. I suspect an intermittent hardware problem.
Try turning off device and removing battery overnight. Then re-insert battery and turn on device.
Thanks, I'll give that a try.
Tried this, but didn't seem to make a difference. I'll try a hard reset.
Strangely, after one last kiss of life with nDesktop (a soft reset controlled from the desktop), the HTC seems to be working fine. It's lasted more than 12 hours now. I hope for more.
What does disconnecting the battery overnight do?
Kevin Murray said:
Strangely, after one last kiss of life with nDesktop (a soft reset controlled from the desktop), the HTC seems to be working fine. It's lasted more than 12 hours now. I hope for more.
What does disconnecting the battery overnight do?
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Click to collapse
Other users have experienced similar situations as yourself with screen going blank but functions still working. One fix for this was to remove battery and leave device off overnight. I'm not sure why this worked, possibly letting device cool off, but it has worked for others. This is why I suggested it
Going blind slowly
Well, there seems a pattern. With time, the screen eventually fails to turn on. I then sync with the desktop and use mdesktop to re-boot the device. It works for up to an hour, sometimes more. Then it lapses back into blindness.
It can't be a software fault, as it happens even after a hard reset.
I don't think it's a faulty component, as it wouldn't fix after a sync.
It must be some strange electrical thing going on that responds to the reset process, but then eventually fades.
Perhaps I need some sorcery.
Kevin Murray said:
Well, there seems a pattern. With time, the screen eventually fails to turn on. I then sync with the desktop and use mdesktop to re-boot the device. It works for up to an hour, sometimes more. Then it lapses back into blindness.
It can't be a software fault, as it happens even after a hard reset.
I don't think it's a faulty component, as it wouldn't fix after a sync.
It must be some strange electrical thing going on that responds to the reset process, but then eventually fades.
Perhaps I need some sorcery.
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If it is indeed hardware why not return it under warranty? Just make sure you have a stock SPL and rom on device before you return it
It's just out of warranty. That's why I was so keen to find a solution first.
Is the warranty 2 years?
Warranty is generally 12 months. Found this similar thread which may help
I assumed it was 12 months, but when I looked at the warranty pdf file from HTC's website it says 2 years.
http://www.htc.com/www/support/warranty.html
Western Europe, Windows Mobile
2. This Limited Warranty shall last for twenty-four (24) months from the
date of original purchase for mobile devices, and twelve (12) months
for accessories (whether included in the mobile device sales package
or sold separately) other than the media on which any software is
provided, CD-ROM, memory card (“Warranty Period”).
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Recently my HD2 starter to reboot often i didn't pay much attention at the time because the occasional reboot wasn't something new, however the reboots started occurring more often and eventually my phone started freezing, rebooting and boot failing ( freezes at the 123456 gogogo or when i try to load CWM, or at any point in the boot animation). So far i tried different roms but it didn't seem to matter, i tried Task 29, wiping caches, formatted SD card several times in different ways. Eventually i reverted back to stock rom and reflashed everything all over again but that also didn't work. Also my phone get's a little warm and if i leave it powered off for 5 minutes it usually boots on the first try. Is it possible that the phone is overheating and that is causing the problems, or is it something else?
I'm using the 576MB, MAGLDR 1.13, HSPL 2.08, CWM 5.0.2.6, Radio is 2.15.50.14
Your symptoms seem to be that of a CPU heating problem. There is a layer of heat conducting paste at the back (bottom-right, inside the phone) that might wear off with time causing improper heat dissipation causing the CPU to hang or reboot. If you know how to, open the back cover (not the battery cover, the phones back side) and apply a layer of heat conducting paste (should be available in most computer hardware stores, also comes with new Intel CPUs) on the part of the mainboard covered with a metal cover - lookup images or videos of how to open the phone and you'll understand all that I am saying.
Hopefully this would solve the problem. If it did not, you are in deeper trouble - time to look for a replacement for your ol' HD2.
ph03n!x said:
Your symptoms seem to be that of a CPU heating problem. There is a layer of heat conducting paste at the back (bottom-right, inside the phone) that might wear off with time causing improper heat dissipation causing the CPU to hang or reboot. If you know how to, open the back cover (not the battery cover, the phones back side) and apply a layer of heat conducting paste (should be available in most computer hardware stores, also comes with new Intel CPUs) on the part of the mainboard covered with a metal cover - lookup images or videos of how to open the phone and you'll understand all that I am saying.
Hopefully this would solve the problem. If it did not, you are in deeper trouble - time to look for a replacement for your ol' HD2.
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Click to collapse
Thank you! I will try, and if it doesn't work One X is coming soon
This may help in disassembling and reassembling the HD2:
http://pocketnow.com/hardware-1/official-htc-hd2-disassembly-assembly-training-videos-leaked
I don't know where to post this, because i'm a new user and am not allowed to post this to the ROM-Thread (NDT MIUI 2.3.7 DEVELOPMENT V48.0|STABLE V6.0).
I have the stable Version of this ROM and had the problem that the device rebooted several times without any reason. And there was another problem: I never received SMS.
One time a friend called me 3 minutes after the device rebooted and told me he send me a sms minutes ago.
I tried some things and noticed, that it freezes and reboots everytime i received an SMS (the sender gets an receiving receipt but i never get that sms).
The Solution is:
Deinstall Avast Free Antivirus, including the Anti-Theft (Anti-Theft is listes as an extra app, first you need to disable AntiTheft's Root-Rights if you set it), you can then de-install it via Superuser.
Now it works
Everytime I charge my HD2 while driving and open some navigation program, it freeze
Sometimes I listen to the music and turn on 3G, the phone freezes
When I play jewels star more than 30 mins, it hangs
Not every case the bottom right of HD2 is so hot, but most of the time yes.
Thanks ph03n!x, I'll try to make CPU cooler to see if this problem solved.
Hey
I've begun having problems with my rooted Nook a while ago - it was just freezing at random moments, sometimes unable even to be restarted.
Today I finally decided to perform a factory reset, hoping it would help. Unfortunately, it still happens - at first I wasn't even able to go through the registration process, as it freezed on a wifi page or on a login page. Now I've passed it and am on a home screen, but looks like the factory reset hasn't fixed my problem.. Any ideas what I should do?
I don't have any backups.
From what I've noticed the Nook usually gets back to life when I plug it in, so it might be a battery issue. The problem is, I can't my warranty to replace it, because I left it at home on the other side of the world, where I won't be back until january.. so I'm looking for something I can do on my own.
You only need your serial number to trigger a warranty replacement, as far as I know.
You will need to call BN and be ready to be on hold a long while, but they ought to be able to help you out.
roustabout said:
You only need your serial number to trigger a warranty replacement, as far as I know.
{/QUOTE]
That's a good thing then. And who covers the cost of shipping to US?
I've contacted their CS by email but seems like I'm getting answers not related to my problem..
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They ship the unit to you, and I think they box is prepaid for the return shipment.
You will need to do this over the phone, as far as I know -- their CS is weak to start with, and I'd be very surprised if you were able to get a warranty replacment moving as a result of an email conversation.
roustabout said:
They ship the unit to you, and I think they box is prepaid for the return shipment.
You will need to do this over the phone, as far as I know -- their CS is weak to start with, and I'd be very surprised if you were able to get a warranty replacment moving as a result of an email conversation.
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Just called them and looks like I need an american credit card or to go to USA, both being impossible for me (and probably they can send a new nook only to US either). So I'm looking for any other options, don't care about my warranty.
I think that I'd do some sleuthing and figure out if it is the battery.
Use any of the utilities to look at battery voltage and not "percentage".
If the battery is dead I'd try replacing it with a generic 3.7V Li ion battery.
The temperature sensor could be replaced with a fixed resistor if required.
There are some folks who have found that opening the device, disconnecting the battery, then doing something that reads like discharging a capacitor - there is sometimes a problem with the battery, where it is fully charged but the OS thinks it is fully discharged.
Here is a post that describes a fix which might apply for the OP:
http://forum.xda-developers.com/showthread.php?t=1813384
Simple Fix for Freezing Nook Simple Touch
I am going to post this here and on the xda thread referenced above. This may not work for everyone but it worked for me. And it is a simple fix that does not involve taking the NST apart.
Run the Battery Calibration v 1.2 app per the instructions on its opening screen (start app, charge to 100%, touch button in app.) App can be run while nook plugged in.
I found it here
https://battery-calibration.en.uptodown.com/android/download
But note that it is found here also (some of the mirror links still work)
https://forum.xda-developers.com/showthread.php?t=1033529
The Nook Simple Touch runs a modified version of the Eclair version of Android. Finding Eclair compatible apps is becoming increasingly difficult. So finding a battery calibration app that actually works is golden.
MY SYMPTOMS
Nook Simple Touch froze. Battery showed mid 70% range when plugged in to charge. After recharge everything was fine until it got back into the mid 70's again.
Then it started freezing in the 80% range.
I finally decided I needed to do something when it started freezing in the 90's.
I had even ordered a new battery (which will likely fix this issue also.) But decided to try this super simple fix first.
Hey everyone,
I recently dropped my Note 3, SM-N900 which I originally got from Vietnam. It was dropped, display cracked, all black. I had the screen replaced but the repair tech didn't realize it was the international version. He only had parts for the Canadian versions of this phone. He somehow managed to replace the display despite having the correct components. He fixed replaced the screen without replacing the bezel.
The screen worked great again but I realized my IMEI is now null or "Unknown".
I can't say whether it was still OK after being dropped because the screen was black and I didn't bother trying to call the phone.
I have found a lot of threads on IMEI unknown/null but read several warnings that this can be caused by either hardware or software. A software fix won't work if it is caused by a hardware problem.
Is there any way to tell what the cause is of an IMEI unknown?
Can you distinguish whether it is caused by hardware?
If it is caused by hardware, do I have any way of repairing this? Component replacement?
Could this be caused by the mismatched screen? This thread indicates a wrong screen could put too much pressure on some components, causing null IMEI....
http://forum.xda-developers.com/galaxy-s3/help-i9305/loosing-imei-lcd-replace-t2175895
Thanks for any help here! Really want to be able to make phone calls again....
Nathan
Start by restoring your backed up EFS folder .
Thanks for the replay - I didn't back up my EFS folder prior to the phone being dropped.
There is no sense in trying to back it up now and restore again, correct?
Also, is there any way of determining whether the EFS folder is corrupted? I've never heard someone say there is a file in there with the IMEI in plaintext or anything like that. But I figured perhaps there's a way to check the folder and figure out whether it is corrupted?
There is something you can try... go to sammymobile and download the rom for your exact device and region/provider. As long as they are matching, it should restore things back to how they were.
(example: if your phone is from Vietnam, get the rom for your phone from vietnam - and everything will be back to normal after flash from odin).
Good luck!
Update! I factory restored my phone a second time now. Still got null imei after restarting.
Then in the same day in the evening, and the IMEI is back! This is the first time ive seen the IMEI since I dropped the phone.
All that happened during the day was that I put the phone in a backpack, went on a trip and took it out again. Not sure if it was turn3d off between, dont think so.
I read this has happed to others, where the IMEI came back randomly, but then also vanished just as randomly again.
This sounds like a hardware issue with a poor component connection. I heard someone mentioning reflowing... guessing that means stick parts in an oven for a while.
Thanks for the tips so far!
Nathan
Hi, I have a LG K20 Plus. I currently can't turn the phone on, so I don't have much software information to give you. The phone was bought at T-Mobile (Metro by T-Mobile) and I had a SafeLink sim card and a 16 gb micro sd card inserted when the issue started. I have since removed both. It says Qualcomm snapdragon on the screen when it starts. It was also rooted and the bootloader is unlocked.
I broke the screen on my phone and I decided to do the repair myself. I have done about 7 or 8 screen replacements and I actually did this phone a year ago with no issues, so I felt I could manage this one as well. I bought an entire display (from ebay) and switched it out with no problems. Initially it worked great! I used it for a few days before realizing that I had no sound. I opened it back up and noticed the loud speaker had fallen out. I found it, put it back in, reassembled it as I normally do and turned it on.
NOTE: when I was reassembling it the second time, I actually tried to put a screw in a hole that wasn't a screw hole. I used a light to normal amount of pressure but I didn't force it. I think it's the hole where the moisture detector is. Picture #1
I turned it on and right after the logo screen I got a message that said "High temperature detected Powering off for your safety" and it immediately shut off. The phone does appear to charge normally but it won't stay on. I did a factory reset (I'm not sure if it's still rooted but the bootloader is still unlocked). I also switched back to the old (broken) display just to check if that would work. I couldn't see any difference in the shielding but I switched them just to be sure. I bought a new battery and installed it. I took a q-tip and 95% Isopropyl Alcohol and cleaned pretty much the entire motherboard, paying special attention to the battery connections. After each one of these things, I tried to start it with the same error message immediately upon start up.
NOTE: At no point has the phone every physically felt hot or even warm. I don't think it's on long enough for it to get hot. But something is wrong and I have no idea what it is. I, literally, took the phone apart, put in the speaker and put it back together in less than 5 minutes. Could it be I just bumped something and knocked it loose?
I searched for any information I could find both here and with google but there is next to no information on the LG K20 Plus. I did find some information on the LG V20 that had overheating issues, and that has been all the luck I've had. I watched several videos and it seems the solution is to apply thermal paste. But my phone doesn't have any evidence that thermal paste was ever on it. I went and bought some but I have no idea where exactly to put it or even if it's needed. Most videos showed people using some kind of aluminum foil but I'm not sure if that is safe. I have several old phone laying around and I managed to get some of the silver tape and a copper square thing but, again, my phone did not have these things to begin with. I don't want to start adding things only to make it worse.
There is a slight difference of the tape that is on my phone now (the display I just bought) as compared to the old one (broken display). Picture #2 Again, I have no idea if that means anything but I thought it worth mentioning. Picture #3 is how it looks now as if I were going to put it back together. Picture #4 is the part (don't know name) where the videos show to apply the thermal paste and the shielding.
I'm really at a loss as to what to do next and I can't really afford to take it in to have it repaired before next month. If anybody has any insight or answers as to what happened, I'd be very grateful for your help. I'm sorry for the long post. I just wanted to tell you everything I have done in detail. Thank you
If you're using Kernel Auditor or any other kernel adjustment simply reset to default and use only ondemand or interactive. There's also options for the thermal portion of the kernel, don't mess with those. If VCC or another thermal option was checked off turn it back on. Putting the GPS to the moderate setting (the one below high accuracy) will keep the temps down as well. Are you using a custom ROM? If you're on Discord you can feel free to message me SCOPE★ BRΞΛD #8460 . I am only offering that so we can get this resolved quickly for you, just copy and paste since I use special characters.
Omgosh, thank you so much for taking the time to respond! Although I'm sure everything you are saying is very smart, I have absolutely no idea what you're saying. I'll do my best to try and answer you. I don't know what SCOPE is or how to send a message there. I don't think I'm using any thing for the "kernal". Also, I don't know what VCC or Discord is. As far as turning off setting for GPS or any other app, the phone will not stay on. I get about 1 sec after the logo when it boots up, then the error message about overheating and it immediately shuts off. I did a factory reset so everything should be good to go as far as apps. I don't think I'm using a custom ROM. The only thing I did was install TWRP, unlocked the bootloader and rooted the phone a year ago but nothing since then. As I stated earlier, this happened right after I did a display repair. Is there something on the MOBO that can get bumped that will make your phone get hot or send a overheating error. My phone doesn't show any sign that there was ever thermal paste on it prior but should I add some now. Will that help?
Update... Now the phone does not power on at all. When I plug it in to charge it I get an error that says "Device temperature is too high or low. Please move to another place to charge. I wonder where you went. I googled SCOPE so I could sign up to message you like you asked me to but nothing but definitions came up. I know I'm out of my league here. You guys all talk so technical. I didn't understand one thing the person asked me for. I know it's rare to get a response as quickly as I did and I was so happy to see someone had responded. Now, I just feel stupid and defeated. I thought this site was inexperienced with cell phones friendly. I'm just trying to get help so I don't have to go out and buy another phone again. Can someone refer me to a site that is more directed toward people who don't know much about the technical side of cell phones... please! Again, thank you for your time.
HelpNeededPlz said:
Update... Now the phone does not power on at all. When I plug it in to charge it I get an error that says "Device temperature is too high or low. Please move to another place to charge. I wonder where you went. I googled SCOPE so I could sign up to message you like you asked me to but nothing but definitions came up. I know I'm out of my league here. You guys all talk so technical. I didn't understand one thing the person asked me for. I know it's rare to get a response as quickly as I did and I was so happy to see someone had responded. Now, I just feel stupid and defeated. I thought this site was inexperienced with cell phones friendly. I'm just trying to get help so I don't have to go out and buy another phone again. Can someone refer me to a site that is more directed toward people who don't know much about the technical side of cell phones... please! Again, thank you for your time.
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Hey, I just wanted to say sorry this happened to you. The same thing happened to me. My LG K20 Plus, no matter what button combinations I push and for how long I hold them, will not turn on or go into download mode. Plugging it in to a charger or PC does nothing either. Before it got to this state, I got the infamous green screen of death/Demigod crash handler (google this--it's a known issue with some models of LG phones and it happens when they overheat). It's definitely a hardware/build issue, and especially since this issue keeps the phone from turning on or connecting to a computer, I don't see a workable fix short of buying a new phone, unfortunately. Again, I'm in the same boat so I'm not happy about it either. I would say XDA is by far the best site to find a fix to this sort of problem, so if no one here has any suggestions on how to fix it, I think you (we) may be out of luck.
Thank you for letting me know. I'm not sure of some of what you said but I did catch the bottom line. Basically, just hold onto the phone until someone here comes up with a fix or workaround? I have a question for you. Did your problem start after you did some kind of repair? I'm wondering if I bumped something on the mobo to make it give a false overheating error. Do you happen to know where that sensor might be located? Sorry you are having problems to. It really stinks when your phone breaks and no matter how much time and energy you put it to figuring out the problem to fix it, there just isn't any good answers out there. I wish you lots of luck and if you figure anything out, please update here so I can try it too.
You need a whole new phone.
That or you're gonna have to replace the hardware