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[Q] Help... China phone A4 Android 2.2 OS recovery needed.

Hi,
I have a China dual sim Android 2.2 phone with 4.3" A4 (look like Droidx) is corrupted. Need the rom and help for recovery.
First, the IMEI is gone after I do a factory reset.
Thinking to restore all apps and get a replacement, then I accidently restore all system apps without realize permission setting (just copy back with RootExplorer).
Now, my phone is started without any apps running other than "Setting". All apps is missing, cannot be started up including Market, Browser, File Manager, terminal, Universal Root that installed previously.
When I boot into recovery mode, I do not see any option to update/run the update.zip.
Anyone have the rom for A4?
Any guide that I can used to recover?
How to put back the IMEI? I have the image of the IMEI sticker behind the phone.
Please help...
Thanks.

[Q] Galaxy Nexus radio/modem failure, baseband version : unknown

Hi,
I'm new to this forum.
I got a new Samsung Galaxy Nexus (unlocked GSM-i9250) mobile thruoug Google Store and got it to India.
I did an OTA upgrade from ICE Stock 4.0.4 to stock JB 4.1.1. My next upgrade to 4.1.2 failed, though detected by system failed.
So I used the phone for about 2 days and one day after charging, there was no radio service. WIFI works. Tried another SIM
and operator but in vain.
As all my efforts of factory reset, reboot etc failed, I thought of reflashing the latest images.
So I downloaded the latest images from Google site, unlocked the bootloader, followed different threads
and tried updating to 4.1.2. System now boots to 4.1.2 and WIFI works, but no GSM service still.
In the phone settings
Basebad version : unknown
Network : Unknown
IEMI : unknown
Service state : Out of service/Radio off (keeps toggling every 4-5 sec)
So I tried going back to 4.0.4 and system boots back to 4.0.4, but no GSM service
No idea what is happening. Two of us bought at the same time and got the same to India. For my friend, the OTA updates
to 4.1.1 and 4.1.2 went through fine.
I saw similar issues reported but not able to figure out how finally they solved it.
Any suggestions/help is appreciated.
Thanks in advance
Sanu

sanu.mathews said:
Hi,
I'm new to this forum.
I got a new Samsung Galaxy Nexus (unlocked GSM-i9250) mobile thruoug Google Store and got it to India.
I did an OTA upgrade from ICE Stock 4.0.4 to stock JB 4.1.1. My next upgrade to 4.1.2 failed, though detected by system failed.
So I used the phone for about 2 days and one day after charging, there was no radio service. WIFI works. Tried another SIM
and operator but in vain.
As all my efforts of factory reset, reboot etc failed, I thought of reflashing the latest images.
So I downloaded the latest images from Google site, unlocked the bootloader, followed different threads
and tried updating to 4.1.2. System now boots to 4.1.2 and WIFI works, but no GSM service still.
In the phone settings
Basebad version : unknown
Network : Unknown
IEMI : unknown
Service state : Out of service/Radio off (keeps toggling every 4-5 sec)
So I tried going back to 4.0.4 and system boots back to 4.0.4, but no GSM service
No idea what is happening. Two of us bought at the same time and got the same to India. For my friend, the OTA updates
to 4.1.1 and 4.1.2 went through fine.
I saw similar issues reported but not able to figure out how finally they solved it.
Any suggestions/help is appreciated.
Thanks in advance
Sanu
Click to expand...
Click to collapse
I had a similar experience with my previous Nexus S device. The phone would start up perfectly fine but it wouldn't catch reception. I think I flashed the wrong radio.img file (there are a lot of Nexus S variants).
I would try the following steps:
- Flash CWM recovery
- Flash a custom ROM (you can use "Mounts and Storage" in CWM recovery to gain temporary access to your internal storage - you will need to do this to copy your ROM file there)
- If you like it, just stick to the custom ROM.
If you insist on going back to the stock ROM, there are threads here that guide you to go back to stock completely. Even if you go back to a previous ICS ROM (specific to your phone), you should start receiving OTA updates normally.
Best of luck!

Thanks for the reply.
I'm almost sure the radio image is fine. I downloaded the images from
Google Nexus developers site for "takju" for Galaxy Nexus "maguro" matching with my phone.
I flashed matching ROM and radio images from Google site. Tried both ICS 4.0.4 & JB 4.1.2
I'll try custom ROMs if nothing works out. I'm going to try this first time, so need to chk the threads first. This is my first Andriod phone and already ran into trouble after just 2 days of use, that too without any manual flashing. Only OTA happened before the issue.
Could the h/w have gone bad ?
In fastboot mode, the radio version is displayed correctly, but not after phone is up and running.
If the h/w has become faulty, I still expect the "Baseband version" in "About Phone" to be correct.
Is this assumption correct ? If it is s/w issue, I'm relived and I can try some custom image. So I'm hoping its only a s/w glitch.
Thanks a lot

you flashed the wrong rom on your phone and corrupted its efs partition. If you have a backup (why should you if you didn't even know that it was that to fail your phone's radio..) you could proceed and restore it. If you don't it's a big mess and you might have to go to a repair service.
Anyway you could still try and flash the original ROM for your phone and see if it fixes the problem. If not there are tools on the web (search the forums) that could try and restore your partition even if you don't have a backup.
If you succeed in restoring your phone don't EVER forget to backup you /efs partition

Thanks.
I tried flashing as the phone radio just stopped working after I charged the phone one day morning.
Let me follow your suggestions. I didn't know about efs partition. may be its messed up
What is puzzling me is, how can the factory images from google be wrong.
clait said:
you flashed the wrong rom on your phone and corrupted its efs partition. If you have a backup (why should you if you didn't even know that it was that to fail your phone's radio..) you could proceed and restore it. If you don't it's a big mess and you might have to go to a repair service.
Anyway you could still try and flash the original ROM for your phone and see if it fixes the problem. If not there are tools on the web (search the forums) that could try and restore your partition even if you don't have a backup.
If you succeed in restoring your phone don't EVER forget to backup you /efs partition
Click to expand...
Click to collapse

sanu.mathews said:
Thanks.
I tried flashing as the phone radio just stopped working after I charged the phone one day morning.
Let me follow your suggestions. I didn't know about efs partition. may be its messed up
What is puzzling me is, how can the factory images from google be wrong.
Click to expand...
Click to collapse
It's not the factory images to be wrong but the fact that if the /efs partition is really corrupted the stock images don't contain the info necessary to flash that partition as well.
In fact it may become corrupted after a wrong flashing but a new, correct, flash won't restore it. The only way back is the /efs backup.
What if you type *#06#? Does it show you an IMEI number or what?

*#06# shows "OK"
clait said:
It's not the factory images to be wrong but the fact that if the /efs partition is really corrupted the stock images don't contain the info necessary to flash that partition as well.
In fact it may become corrupted after a wrong flashing but a new, correct, flash won't restore it. The only way back is the /efs backup.
What if you type *#06#? Does it show you an IMEI number or what?
Click to expand...
Click to collapse

sanu.mathews said:
*#06# shows "OK"
Click to expand...
Click to collapse
Between the blue line and the OK it should show the sixteen digit long IMEI number. the fact that it isn't shown simplifies the diagnosis. I'm 100% sure you've got your /efs partition corrupted.
Please do a forum search on how to restore it.
Sent from my GT-I9300 using Tapatalk 2

Thanks a lot.
This eliminates so much un-wanted time waste/means no need to try various steps.
Can I get efs dump from another Galaxy nexus and flash it on mine after rooting ?
I'm under the impression that IEMI number etc should be in OTP and that can't get corrupted but efs may have some meta data regarding the same
clait said:
Between the blue line and the OK it should show the sixteen digit long IMEI number. the fact that it isn't shown simplifies the diagnosis. I'm 100% sure you've got your /efs partition corrupted.
Please do a forum search on how to restore it.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse

sanu.mathews said:
Can I get efs dump from another Galaxy nexus and flash it on mine after rooting ?
Click to expand...
Click to collapse
No can do, the IMEI is a per device unique number.
Check this thread and do some forum search: http://forum.xda-developers.com/showthread.php?t=1689525
You're not the only one that lost the IMEI so chances are likely to you to resolve your issue!

If I copy the IMEI number from the box or my working phone, will it work ?
What I want to know is, is it only coming from EFS or if IMEI is changed will be there be some signature that will fail etc
I have used fastboot but not sure about rooting, so need to read that before trying Rooting
In India, Samsung won't repair my phone as I got it from US.
Another worry is, let IMEI number be wrong and let there be no network, but atleast "Baseband version : Unknown" shdn't come in the phone, correct ? Coud there be any issue with radio image partition itself ?
clait said:
No can do, the IMEI is a per device unique number.
Check this thread and do some forum search: http://forum.xda-developers.com/showthread.php?t=1689525
You're not the only one that lost the IMEI so chances are likely to you to resolve your issue!
Click to expand...
Click to collapse

sanu.mathews said:
If I copy the IMEI number from the box or my working phone, will it work ?
What I want to know is, is it only coming from EFS or if IMEI is changed will be there be some signature that will fail etc
I have used fastboot but not sure about rooting, so need to read that before trying Rooting
In India, Samsung won't repair my phone as I got it from US.
Another worry is, let IMEI number be wrong and let there be no network, but atleast "Baseband version : Unknown" shdn't come in the phone, correct ? Coud there be any issue with radio image partition itself ?
Click to expand...
Click to collapse
Mate - I too am from India, and I too got the exact same problem, and I too tried all you did - all this about a month back. I have reconciled myself to the fact that its a hardware issue. Since samsung centers in India won't do any repairs, I'm afraid we're both stuck with really expensive music players.
My sympathies.

Fixed by sending in for warranty
Just an update...I was having all of these symptoms...unknown IMEI, Baseband, etc...basically gave me an expensive media player for a few months while waiting for a fix on XDA. After no update I decided to call up Samsung and after talking to 3 different technicians, I was able to send it in. Just a note for anyone about to do the same, they will try very hard to blame it on the carrier/SIM card, so save yourself some trouble and just say you already went to the physical store of your carrier (calling isn't enough)and they couldn't get it working. Once you get past that, they will email you a printable 2-day UPS shipping label so you can ship it to them for free. It took 2 weeks from the time I called to having a working phone back in my hands.
This was their fix:
Problem found:
NO PCS SERVICE
Solution:
REPLACED PBA
After a quick search I found that the PBA is the motherboard, so it's definitely a hardware issue. Hope you guys are still under warranty because I've heard this is ~$200 to fix otherwise.
Good luck.

[Q] Oneplus one not working

I updated my Oneplus One manually to the newest Version of CM12s. While flashing it, my Recovery (TWRP) chrashed. So to be sure I installed my freshly performed Nandroid Backup. But nothing helped. I couldnt connect with the Wifi, no SIM Cards were found, no Bluetooth Connectivity and it had Random Reboots. So i decided to flash back to Stock CM11s (the first ever released). But the Problems were the same afterwards. I flashed the Stock image via ADB and, after I found out nothing changed, via the Oneplus One Toolkit, but the Problems were still there. I also made a video on Youtube to show what happens and i hope that i can repair it and must not send it back to repair, because a repair would cost me up to 300€. So pls tell me a way to fix this Problem, because I really like this Phone:crying::crying::crying:
For the video search "Oneplus One not working" by the User "axel thegamer"

AxelWexel said:
I updated my Oneplus One manually to the newest Version of CM12s. While flashing it, my Recovery (TWRP) chrashed. So to be sure I installed my freshly performed Nandroid Backup. But nothing helped. I couldnt connect with the Wifi, no SIM Cards were found, no Bluetooth Connectivity and it had Random Reboots. So i decided to flash back to Stock CM11s (the first ever released). But the Problems were the same afterwards. I flashed the Stock image via ADB and, after I found out nothing changed, via the Oneplus One Toolkit, but the Problems were still there. I also made a video on Youtube to show what happens and i hope that i can repair it and must not send it back to repair, because a repair would cost me up to 300€. So pls tell me a way to fix this Problem, because I really like this Phone:crying::crying::crying:
For the video search "Oneplus One not working" by the User "axel thegamer"
Click to expand...
Click to collapse
Can't find your video, can you paste the link as text?

gsmyth said:
Can't find your video, can you paste the link as text?
Click to expand...
Click to collapse
i cant, because i made a new account here.
just search "oneplus one not working", then set "filter" on today and you will find it

AxelWexel said:
i cant, because i made a new account here.
just search "oneplus one not working", then set "filter" on today and you will find it
Click to expand...
Click to collapse
Ok found your vid, I see you have flashed the stock image files via ADB, have you done a full factory reset (wiping data) from the phone/TWRP? Its a bit worrying that flashing the stock image files didnt sort the issue. As it seems to be WiFi on/off that causes the reboot it would make me think it was to modem/radio but this should have been written again when you flashed the stock images.
@AxelWexel can you check in your Settings>About phone menu if your IMEI number is showing? Just in case your EFS has become corrupted. It definitely sounds fixable as if something has corrupted and needs wiped fresh.
EFS fix:
http://forum.xda-developers.com/oneplus-one/general/fix-people-corrupt-efs-mobile-data-t2836389
Also worth a shot, fixing corrupt partitions guide in ADB:
http://forum.xda-developers.com/oneplus-one/general/guide-identifying-fixing-corrupted-t2993500

gsmyth said:
Ok found your vid, I see you have flashed the stock image files via ADB, have you done a full factory reset (wiping data) from the phone/TWRP? Its a bit worrying that flashing the stock image files didnt sort the issue. As it seems to be WiFi on/off that causes the reboot it would make me think it was to modem/radio but this should have been written again when you flashed the stock images.
@AxelWexel can you check in your Settings>About phone menu if your IMEI number is showing? Just in case your EFS has become corrupted. It definitely sounds fixable as if something has corrupted and needs wiped fresh.
EFS fix:
http://forum.xda-developers.com/oneplus-one/general/fix-people-corrupt-efs-mobile-data-t2836389
Also worth a shot, fixing corrupt partitions guide in ADB:
http://forum.xda-developers.com/oneplus-one/general/guide-identifying-fixing-corrupted-t2993500
Click to expand...
Click to collapse
Thx for the Links and i tried to watch on my phone and there is no imei number. I also did a full wipe after i found the issues. I also tried it via the Toolbox to flash the stock rom back but it hadnt change anything. But I will look the links you postet and reply if anything has changed. But now thx again:good:
P.S: I renamed the Video to "Oneplus One not working (23.06.2015)" to find it more easily
Edit 1: The Second Link with fixing corrupt partitions via adb wont work for me because i dont have root but my bootloader is unlocked. so i cant find the root acsess for adb in the developer options
Edit 2: I installed color os like the link said, done everything it said, but still no wifi, bluetooth and no sim card detection:crying:. Luckily the random reboot stopped Could you again help me further more because it seemed to help
Edit 3: I went back to cm11s, because in color os when i turned the phone off it turned on again, the connectivity was not there. After the install it became worse with the random reboots. I think i must send it to repair and pay 300€:crying::crying::crying::crying:

LG D800 providers.settings issues!

Hi there! I have a Stock kitkat d80020y, made root with stumproot but without custom recovery, it's running stock right now.
First of all let me tell that I have in my computer nandroid backup of it (TWRP & CWM) made with OnlineNandroid and one LGBackup made with system restore menu.
Here's the trouble:
I am about to sell my phone so i was backing up some stuff yesterday when i realized it was not syncing contacts with google, after researching a bit I deleted the "com.android.providers.settings" folder which it was situated into "data\data" and rebooted device.
Then, sync problems gone but some another problems came up, couldn't get into some settings just as language, swipe down settings didn't work neither, home button didn't work at all, etc; when tried to use that things, phone just did nothing or stayed one second and got back to home screen. Read something that factory reset would definitely solve my issue, well it did solved it at a glance, home button was functional again but, things like language submenus were still not working.
So then, I try to install an LG Backup using the system app, could restore settings and appeared to be solved, but after another factory reset, remember I'm about to sell it, the whole issues came up again.
As I have nandroid backup I've recently checked the clockworkmod folder and find the deleted folder.
Considering that i could manage to get that LGBackup installed again, could it be possible to paste "com.android.providers.settings" back into "\data\data" folder then?
Should that be the definitely fix? Or I'll have to reflash all nandroid even though I don't wanna take that risk because is just those problems, apparently related to that specific deleted folder, the other things of the phone are intact and work great.
In case of need reflashing, could you tell me about any easy tutorial on how to do it, including custom recovery installation for my stumprooted device?
I don't actually know how to ADB any android device, if you could also help me with the right tutorial and drivers for this phone so i have everything ready just in case of needing CMD to fix this device it would be great.
Hope I get some answers soon so i can quickly fix the device, any ideas are welcomed and will be utterly appreciated.
Sorry for the long text but i wanted to be as clear as i could.
Regards!

lautta10 said:
Hi there! I have a Stock kitkat d80020y, made root with stumproot but without custom recovery, it's running stock right now.
First of all let me tell that I have in my computer nandroid backup of it (TWRP & CWM) made with OnlineNandroid and one LGBackup made with system restore menu.
Here's the trouble:
I am about to sell my phone so i was backing up some stuff yesterday when i realized it was not syncing contacts with google, after researching a bit I deleted the "com.android.providers.settings" folder which it was situated into "data\data" and rebooted device.
Then, sync problems gone but some another problems came up, couldn't get into some settings just as language, swipe down settings didn't work neither, home button didn't work at all, etc; when tried to use that things, phone just did nothing or stayed one second and got back to home screen. Read something that factory reset would definitely solve my issue, well it did solved it at a glance, home button was functional again but, things like language submenus were still not working.
So then, I try to install an LG Backup using the system app, could restore settings and appeared to be solved, but after another factory reset, remember I'm about to sell it, the whole issues came up again.
As I have nandroid backup I've recently checked the clockworkmod folder and find the deleted folder.
Considering that i could manage to get that LGBackup installed again, could it be possible to paste "com.android.providers.settings" back into "\data\data" folder then?
Should that be the definitely fix? Or I'll have to reflash all nandroid even though I don't wanna take that risk because is just those problems, apparently related to that specific deleted folder, the other things of the phone are intact and work great.
In case of need reflashing, could you tell me about any easy tutorial on how to do it, including custom recovery installation for my stumprooted device?
I don't actually know how to ADB any android device, if you could also help me with the right tutorial and drivers for this phone so i have everything ready just in case of needing CMD to fix this device it would be great.
Hope I get some answers soon so i can quickly fix the device, any ideas are welcomed and will be utterly appreciated.
Sorry for the long text but i wanted to be as clear as i could.
Regards!
Click to expand...
Click to collapse
Finally solved flashing stock again with a guide on htcmania forum, this guide is really great for spanish speaking guys like me and many others,(xda doesn't allow me put the link); theres also an english guide here on xda.
I used autorec to install recovery just in case you wanna know
See you!

sm-g610f IMEI unknown

so here's my story:
I bought a used j7 prime. it had android 6.0.1 and it was working fine. even though it didn't seem rooted, the device status was custom and i couldn't get updates. so i downloaded android 7 firmware and i flashed it with Odin. the phone worked fine but i was getting the famous "not registered on network" error. I tried different solution that only made the phone worse. the last thing i tried was flashing an EFS folder ( i think ) that i downloaded through odin and the got messed up. so i flashed android 7 again but then my IMEI was unknown, so i rooted the phone and tried to restore the EFS folder that i had already backed up using EFS Professional, but i get an error message saying "unable to extract archive".
i have no idea what to do and i really need help.
thank you in advance.

nasralli said:
so here's my story:
I bought a used j7 prime. it had android 6.0.1 and it was working fine. even though it didn't seem rooted, the device status was custom and i couldn't get updates. so i downloaded android 7 firmware and i flashed it with Odin. the phone worked fine but i was getting the famous "not registered on network" error. I tried different solution that only made the phone worse. the last thing i tried was flashing an EFS folder ( i think ) that i downloaded through odin and the got messed up. so i flashed android 7 again but then my IMEI was unknown, so i rooted the phone and tried to restore the EFS folder that i had already backed up using EFS Professional, but i get an error message saying "unable to extract archive".
i have no idea what to do and i really need help.
thank you in advance.
Click to expand...
Click to collapse
Did you flash all Firmware (AP, BL,CSC,CP)?
AP, BL, CSC, CP is the new model for installing Firmware

hi
please flash this file with odin.https://drive.google.com/file/d/1TUXAQT4qJPZg9Qrt0ColKZQCxwW1mOG1/view?usp=drivesdk

for fix this problem use this way:
1. download and install partition backup program
https://drive.google.com/file/d/1XQf_jAZR164MI5kDbFPXLGBNKz56GgPY/view?usp=drivesdk
2. download efs image file(attention this file for j7 prime model only)
https://drive.google.com/file/d/1CxVhAxdmlpElo2gvKKNJ_cDrs2PTxByI/view?usp=drivesdk
3. download and exteract this help file for restor efs.img file with partition backup program on your phone.
https://drive.google.com/file/d/1V6UXQqxKMQ1bBXavUGoc8SkGjKDSXtHU/view?usp=drivesdk

I have the same problem on my SM-610F that I bought thinking that flashing would fix the prob.
It also says that the Device Status is custom and IMEI is unknown.
I didn't do any modification after buying it.
Just flashed TWRP by Odin and now it's it says Unable to mount /data.
Been searching for further fixes so far. ??

this happend to a lot, well just install any roms here you will get imei back.
Sent from my SM-G610F using XDA Labs

AmirRouichi said:
well just install any roms here you will get imei back.
Click to expand...
Click to collapse
Any rom means any Custom ROM? I've tried flashing the stock rom, but in vain.
Service Centre told me to send it back to Oman where it was brought from. ??

A S Ovin said:
Any rom means any Custom ROM? I've tried flashing the stock rom, but in vain.
Service Centre told me to send it back to Oman where it was brought from. ??
Click to expand...
Click to collapse
There are 2 ways to bring back the imei
1. you need to flash custom rom or stock rom ( Custom rom link: https://forum.xda-developers.com/t/therealrom-pure-edition-g610x-9.4009347/
Note: Before installation remove the sim. One installation done and reboot the system and once home screen comes insert the sim)
2. one more method is there try once it may helpful for you. First remove the sim from the device. Do network setting reset in the Settings->About-> Reset option-> Select only Network and wifi reset. Note this will erase your saved network passwords. Then install google dialer from playstore. Run the below code *#*#27262826#*#* in google dialer. A screen will come to install CSC features. In the first drop down select the country you want (for india select INS) and submit. Reboot the system. After completion insert the sim and enjoy ur mobile network. It will work for VOLTE. If above code doesn't pop up that option then u need to install rom again.
do it this only in

A S Ovin said:
I have the same problem on my SM-610F that I bought thinking that flashing would fix the prob.
It also says that the Device Status is custom and IMEI is unknown.
I didn't do any modification after buying it.
Just flashed TWRP by Odin and now it's it says Unable to mount /data.
Been searching for further fixes so far. ??
Click to expand...
Click to collapse
About the /data thing. Go to TWRP, select wipe, advanced wipe, click on data, select Repair or Change File System, Change File System, Choose EXT3, let it do. Then go to home screen, and do the same but choose EXT4. You can now access your data until you reboot to Stock ROM or any OneUI/TouchWiz based ROM.
This happens as Samsung encrypts(?) the /data partition. About the IMEI, the factory effed up. You need to send it back to where you bought it and seek replacement.