[HELP]Phone keep rebooting and can not enter into the system - Android Q&A, Help & Troubleshooting

I am an android mobile developers from giayee
company. 2.2 is still at the final testing, with some bugs need to fix.
In the development of transplant android2.2 to the phone,
Have a problem when testing: in logcat , The main services in phone always reboot, the interface is always stop at andid state, can not continue to enter into the system?

Your os. Get corrupted you have to format it.....
Sent from my MTS-SP101 using xda premium

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[Q] No Data

My x10 worked fine for a day after i re flashed it to 2.1, but as of today my data isn't working. So for example i can't access the android market, use facebook, or anything that involves data. I'm on baseband 54. Someone please help.
I had the same problem for 2days. Randomly, in the settings I had turned off data...
Settings / wireless / mobile network / data on off...
Worth a check!
sent using mind control...
I tried and it didn't work. Thinking of just re flashing the rom.
If you are using SE firmware. Try going under settings an press the tab for Sony Ericsson press it and follow the instructions or keep pressing the options for getting data. That should help you.
Sorry I am running Rendeiro2005's ROM at the moment and can't be more specific. That setting I mentioned isn't there on the ROM I am running. But give my suggestion a try. That usually fixed my data when I used SE firmware.
Thanked that worked perfectly
Sent from my X10a using XDA App

What to do if your Wifi/Bluetooth fails causing reboots

Here is an attempt to provide a definitive answer to what to do if your phone has the Bluetooth/Wifi hardware failure.
Note that some of the links don't seem to work with the xda-developer app or the Atrix built in browser. Please blame motorola, not me
Symptoms:
1) If your phone was set to try to use Wifi by default on boot:
Your phone boots into the OS but shortly afterwards freezes and reboots - and again and again.
2) If your phone boots with Wifi turned off:
Your phone boots into the OS and a few seconds after you enable the Wifi in settings or via a widget it shows "Error" and sometimes the phone reboots shortly afterwards. Bluetooth simply fails to work.
If you have warranty return it for a repair. If not the best you can get is to disable the Wifi and Bluetooth so the phone doesn't reboot and can be used with mobile data. Instructions for both are below:
Be sure it is the Bluetooth / Wifi hardware failure:
1) Are you running a custom ROM? - if yes go to 1.1, if no goto 2.
1.1) Reboot into recovery and make a backup.
1.2) Remove your SD card.
1.3) Reflash using RSD to stock - remember to get the right one for the right country!
Get RSD and drivers here:
http://forum.xda-developers.com/showthread.php?t=1136261
Search for your stock firmware using google
Use RSD to install the stock firmware file which will replace the bootloader, recovery and radio - takes about 20 minutes.
Goto 2.
2) Reboot into Stock Android Recovery and reset to factory defaults
https://motorola-global-portal.custhelp.com/app/answers/detail/a_id/60620
2.1) Reboot to Android and try enabling wifi from settings - if it reports "Error" after a few seconds and your phone may reboot shortly afterwards it is the hardware fault. Proceed to 3.
3) Check your remaining warranty here:
https://motorola-global-portal.custhelp.com/app/answers/prod_answer_detail/a_id/82507/p/30,6720,7898
Bottom left - enter your IMEI.
Warranty left goto 3.1 else goto 4.
3.1) Return to Motorola for repair - be sure you flashed back to stock first using instructions in 1.3
4) Unpalatable options are all that is left. Either pay or do without Wi-Fi and Bluetooth. Have money and the desire to fix your Atrix ($110 in the USA)? Goto 4.1 else 5
4.1) Consider paying Motorola to repair the phone anyway. Schedule a repair here https://motorola-global-portal.custhelp.com/app/answers/prod_answer_detail/a_id/82507/p/30,6720,7898
5) This is a complex process. Google is your friend. Unlock your phone using the instructions below. Note you have no warranty to lose (see 3)!
http://forum.xda-developers.com/showthread.php?t=1136261
5.1) Install romracers CWM custom recovery using moto-fastboot (or Android fastboot):
http://forum.xda-developers.com/showthread.php?t=1204500
5.2) Did you take a backup earlier? If yes go to 5.3. If no goto 6.
5.3) Reboot into CWM recovery and restore your backup. Note if you are stuck in a bootloop this will be ok in a bit. Goto 7.
6) Install your favourite ROM using CWM recovery from a SDCARD or by moto-fastboot. Goto 7.
7) Reboot into CWM recovery
7.1) Plug your phone into your PC (you might have to wait for the driver to enumerate the phone first)
7.2) Find or install adb on your computer (hint - it comes with the Android SDK and platform tools from earlier):
adb shell
mount /system
cd /system/lib/modules
mv dhd.ko dhd.ko2
reboot
8) When you install a new ROM or kernel goto 7. Every time.
This little setup moves the driver linux needs to try to talk to the wifi/bluetooth chip which has failed so it can't find it. If it can't find it then it doesn't try to talk to the dead Broadcom Bluetooth Wifi chip that prevents the reboot cycle happening.
The fix was pioneered by:
mvniekerk
http://forum.xda-developers.com/member.php?u=2353874
So go thank him!
In the hopes this helps,
Matthew
Good job. Well said.
Considering how many posts I have seen after posting this solution perhaps it could be sticky?
I promise to maintain it.
Matthew
Sent from my MB860 using xda app-developers app
Hmmm
I think I have done that correctly and flashed the 2.8 Neutrino GT. There was no reboot up to now. But I want to ask if there is a fix for WIFI 'ERROR' and BLUETOOTH error without 'ERROR' message?
Guys please. I can try anything I don't want to lose my phone Warranty is over. How can I find the Broadcom BCM4329 wireless and bluetooth chipset for atrix? So I can find a technician to change it with mine.
If you have the failure there isn't much to be done.
Ifixit has a teardown but the chip is a very small ball grid type thing which will be very hard to fix.
What are your symptoms precisely?
Sent from my MB860 using xda app-developers app
mattaw2001 said:
If you have the failure there isn't much to be done.
Ifixit has a teardown but the chip is a very small ball grid type thing which will be very hard to fix.
What are your symptoms precisely?
Sent from my MB860 using xda app-developers app
Click to expand...
Click to collapse
When I click on 'Turn on Wifi' button, It says 'Turning on Wifi' for 10 seconds and then 'Error' message comes up under the Wifi button and when I click on 'turn on bluetooth' it says 'turning on' but does not turn on. Same as wifi but without the 'error' message.
How can I fix this? I can't use wifi and bluetooth!
Nothing to be done. There is some discussion as to why but a chip in your phone made by broadcom which handles both wifi and Bluetooth has failed.
Short of replacing it requiring sophisticated soldering tools you are stuck. See the $110 Motorola warranty repair.
Sorry,
Matthew
Sent from my MB860 using xda app-developers app
Im stuck.
I have applied the fix to NottachTrix4G rom. I still have the random reboots. I really need help.
Do you get the wifi error message or not?
Secondly does this happen with the normal, stock Motorola rom?
Matthew
Sent from my MB860 using xda app-developers app
When i check wifi does show error. I have not tried the stock moto rom yet.
The best thing to do is return to stock and do a factory reset
Carry out a full backup first (nandroid or using CWM recovery).
The best thing to do is return the atrix to stock and then do a factory rest.
If the problem persists then it is a hardware problem and you can now return it under warranty without them knowing (see the thread for instructions).
Otherwise you seem rather stuck. Perhaps buy an atrix with a smashed screen and transfer the motherboard?
Matthew
Noattachtrix rom was good, but not good enough.
little_man_3666 said:
I have applied the fix to NottachTrix4G rom. I still have the random reboots. I really need help.
Click to expand...
Click to collapse
I ended up using RomGb instead and that fix the bootloop after using NottachTrix4G Rom.
This happened to me Saturday November 17, 2012. Rebooting did not help. Did my searches and found this thread - and was bummed to read that it is due to a hardware issue. Fortunately, I persisted. With the WiFi widget endlessly spinning, I tried the Bluetooth, which would just fail and go to an off state. I elected to do a force close on any running applications one by one, testing Bluetooth after each. I found that BlueTooth and WiFi functionality would come back after force closing some apps. I stupidly left WiFi on and rebooted the phone - this put me in an endless reboot cycle. In the midst of one I managed to enable car dock mode which I have configured to disable WiFi and this got me out of the loop. I found my issue, which has the same symptoms as the above, was caused by a recent update to WeatherBug Elite. I uninstalled the program, and am back to normal operation. Hope this helps others.
Update - it appears my problems continue. Although I can now access BT & WiFi, the problem will re-occur. Force closing Weather version 2.2.2 usually will clear the issue, but I have had a good working WiFi sessions halt to Error. Still gotta think it's software rather than hardware.
Thanks I thought it was the ROM until I found this thread
Well, I was wrong. The issue is hardware not software. In my case pressing the volume down button would change the behavior sometimes, like get bluetooth to work, press volume down it stops or vice versa. Time for a replacement.
I mount the system successfully but when I type cd /system/lib/modules I get it cant find the directory, Please help. I need to do this to stop reboot!!
Definitely Software
I have atrix 4g. Running MROM 2013 2 13. I have the error on WIFI and NO Bluetooth. No reboot, but I rarely use the wifi enough to leave it on(conserve the batt). This is a software issue as far as I can tell as well.. I can fix it by killing the mrom service in "manage applications". If I get a chance I will look further but this seems like enough of a fix to not care.. MROM is pretty great besides this issue.(which appears to happen on multiple roms. My guess would be that it started with CM, but only because that is what the roms are based off of that get the problem.
bubba1993 said:
I mount the system successfully but when I type cd /system/lib/modules I get it cant find the directory, Please help. I need to do this to stop reboot!!
Click to expand...
Click to collapse
Having the same issue. Wifi died after the phone fell off my hands. I had the CM10 ROM by ephinter and everything worked great except the wifi (no reboots). Then I had the AMAZING idea of installing a new ROM and the reboot loop started. EIther with any stock or custom ROM it continues to happen. Tried everything without success.
Have anyone tried disabling wifi in the settings.sqlite and see what happens?
jaunis I found out why mine was doing the boot loop and it is funny but very weird. I wiped the phone and put my cm7 back on there and forgot to activate my gmail account or any account for that case. Now I have been running it with no problems for 40 hours. But of course still no wifi. I am fine with that. but at least I am not dealing with the reboots.
I have an unlocked AT&T Atrix 4G with a custom ROM (Cyan 9.x & ICS 4.x). I started having WiFi issues where the device would reboot anytime I tried to enable the WiFi. This all started at least 6mo after installing the custom rom so I dont think its software related. To try and fix the issue I tried doing a data wipe factory reset, at this point I couldn't get past the welcome screen because WiFi didn't work and I dont have a SIM in the phone (my kid has been using it for games). So from here I decided to try and flash the phone back to stock using RSD Lite;
Be sure it is the Bluetooth / Wifi hardware failure:
1) Are you running a custom ROM? - if yes go to 1.1, if no goto 2.
1.1) Reboot into recovery and make a backup.
1.2) Remove your SD card.
1.3) Reflash using RSD to stock - remember to get the right one for the right country!
Get RSD and drivers here:
http://forum.xda-developers.com/showthread.php?t=1136261
Search for your stock firmware using google
Use RSD to install the stock firmware file which will replace the bootloader, recovery and radio - takes about 20 minutes.
Goto 2.
2) Reboot into Stock Android Recovery and reset to factory defaults
https://motorola-global-portal.custhelp.com/app/answers/detail/a_id/60620
Click to expand...
Click to collapse
I downloaded the AT&T 2.3.4 / 4.5.91 Service SBF which looks like this in RSDLite: 1ff-olympus-user-2.3.4-4.5.91-110625-release-keys-signed-att-us-gas_na_olpsgbattspe_p011.sbf
I started the flash and left my phone for 15m or so to do its thing. When I came back my phone was boot looping (shown in a video here: http://youtu.be/V9wtBNEWRPQ ).
I can't do a factory reset from Stock Android Recovery (step 2 above), I can't get the menu for it. Now what do I do? Did I grab the wrong SBF file? Currently the only place I can grab SBF files at is here: http://www.das8nt.com/sbffiles.html

Xperia X10i randomly restarts

Hi,
My phone started behaving strangely (random but very frequent restarts). Here is what I have done so far:
- Bought new battery - charged externally as well
- Tried separate sim cards
- Formatted the SD card
- Using Flashtool v0.9
- Flashed stock and numerous other ROMs
- Unlocked the boot loader / root the phone
- I did remove userdata and cache when flashing
However neither the upgrade to 2.3.3 nor the downgrade using the Sony ericsson suite helped. Now I have the android v2.3.4 from http://forum.xda-developers.com/showthread.php?t=1516960.
The frequency of reboots and shutdowns has definitely reduced but it still occurs rather often and sometimes even before you get to the home screen.
Please suggest what else can I do about it now.
regards
Ali
My phone also started to make me the same problem he's stuck for a few seconds and then do a restart
It happens several times a day
Hope someone will help us :/
How much free RAM and internal memory do you have?
Sent from my X10i using xda app-developers app
Same here stock rom and everything lots of free ram (around 80MB most of the time) the problem comes when i start to use it to start the browser or upload a photo or if i want to play a game.... i think i saw a similar thread in the forum but it ended in the advice to flash z kernel and it didn't work at lest for me
X10-Sucks said:
Hi,
My phone started behaving strangely (random but very frequent restarts). Here is what I have done so far:
- Bought new battery - charged externally as well
- Tried separate sim cards
- Formatted the SD card
- Using Flashtool v0.9
- Flashed stock and numerous other ROMs
- Unlocked the boot loader / root the phone
- I did remove userdata and cache when flashing
However neither the upgrade to 2.3.3 nor the downgrade using the Sony ericsson suite helped. Now I have the android v2.3.4 from http://forum.xda-developers.com/showthread.php?t=1516960.
The frequency of reboots and shutdowns has definitely reduced but it still occurs rather often and sometimes even before you get to the home screen.
Please suggest what else can I do about it now.
regards
Ali
Click to expand...
Click to collapse
Hi, this ROM from championshipwinner i've been using for a year and was great and only with v8.3 i had rebooting problems, but when you installed this ROM, did you perform a clean installation of it?
Check the installation guide from here
Check also for the discussion thread
Hope that helps

Screen Blackout, Unusual Restarts and USSD Issue with Photon 4G after restoration.

While installing Custom ROM on my MoPho {w/o reading the instructions}.. I put my phone dead in RSD mode.
Please note that I am on 2.3.5 Locked bootloader
Click to expand...
Click to collapse
.
I then followed the peetr_ instruction and installed the full locked sbf and got my phone working back in condition. That was cool. But with the restoration of that sbf , I am now facing the following issues:
1. Unusal Restarts
2. Screen Black Outs - no response from the phone - needs a battery pull out. Generally , daily I am facing 1-2 blackouts and restarts.
3. USSD Codes are not running. Even after the call disconnection the entire network message is displayed by a character like this." ? " Here is eight in a circle, but mine one is ? mark in a tilted square, whereas on the other phones that the complete message for debited balance and remaining balance are displayed. Almost 200 chars. But in this phone its only 1 character. I hope you can understand.
So i need to know , Is there any module or updates available for the solution? If yes links please. Please help me out.
Did you perform data wipe or factory reset? It might help
yairku said:
Did you perform data wipe or factory reset? It might help
Click to expand...
Click to collapse
After restoration, I have performed a Factory Reset with Formatting Internal and External SD...
U cnt check balance with photon using ussd code.... its prblm... n nt a any solution for that yet....
Sent from my MB855 using xda app-developers app
Blackout/Restart resolved. It was due to battery...
Does USSD codes work wid custom roms??
Nd plzz cn u giv m d link or d steps which u av followed to install rom? I am on locked 2.3.5 stock rom.
Sent from my MB855 using xda app-developers app
AFAIK, USSD codes will never work in any ROMs, be it stock or custom, because the bug lies in baseband which cannot be modified yet.

[Q] Crown B700 tablet

I received yesterday my new tablet, bought from here, Dubai, UAE. I have an issue. It doesn't shut down and restart properly. After I choose to do any of these it turns off like the battery would be plugged off. After it turns back on, the basic apps like Skype, Search, Twitter and a few others which are preinstalled automatically in the ROM they go back to its initial version and the update is erased. Its like a full reset but the account and settings are not touched. I found similar problems on the forums but they get a full reset after each restart and to solve the issue you have to root your tablet and copy the busybox file from system/xbin to system/bin. I did this but it doesnt help. Also I tried to flash a ROM from their official russian website but after it starts verifying the zip an error like
Code:
assert failed: !less_than_int getprop ro.build.date.utc
shows up, in the recovery menu. My problem is a bit different.. Its related only to the basic apps which come with the ROM and only the ones who install themselves in the data section not system. Where can I start looking for a solution and do you think these improperly shut downs are related to this? I can even uninstall these apps after restart, but they are put back after the next restart. My tablet is running a 4.1.1 Jelly Bean. Would be thankful if you guys advice me in it. The device is really good, you feel some power inside, but this android system issue makes me crazy.
Sent from my B700 using xda app-developers app
Mango Polo said:
I received yesterday my new tablet, bought from here, Dubai, UAE. I have an issue. It doesn't shut down and restart properly. After I choose to do any of these it turns off like the battery would be plugged off. After it turns back on, the basic apps like Skype, Search, Twitter and a few others which are preinstalled automatically in the ROM they go back to its initial version and the update is erased. Its like a full reset but the account and settings are not touched. I found similar problems on the forums but they get a full reset after each restart and to solve the issue you have to root your tablet and copy the busybox file from system/xbin to system/bin. I did this but it doesnt help. Also I tried to flash a ROM from their official russian website but after it starts verifying the zip an error like
Code:
assert failed: !less_than_int getprop ro.build.date.utc
shows up, in the recovery menu. My problem is a bit different.. Its related only to the basic apps which come with the ROM and only the ones who install themselves in the data section not system. Where can I start looking for a solution and do you think these improperly shut downs are related to this? I can even uninstall these apps after restart, but they are put back after the next restart. My tablet is running a 4.1.1 Jelly Bean. Would be thankful if you guys advice me in it. The device is really good, you feel some power inside, but this android system issue makes me crazy.
Sent from my B700 using xda app-developers app
Click to expand...
Click to collapse
i will buy the b800 is it a good tablet im very afraid of it after looking at your comment

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