Bootloop with different ROMs - Galaxy Tab 2 Q&A, Help & Troubleshooting

My P3100 suddenly stop booting in CM13 and it just started to bootloop.
The things I tried:
- I restore a previous backup
- I did a factory reset
- I put a stock ROM
The behavior is the same: bootloop.
Do you have any advice regarding this problem?

Sorry, emmc is dead. No way to fix unless you replace the motherboard

Lightracer said:
Sorry, emmc is dead. No way to fix unless you replace the motherboard
Click to expand...
Click to collapse
On some tab2 it's enough to update the EMMC firmware but needs someone who can do. I know someone from Austria who can update the firmware and replace the emmc if needed.

Ok, thank you for your answers.
I took the tablet to a GSM service.
If they can make it, its ok, if not, I can live without it.
Once again, thank you.

Related

[Need Help Fast] Boot Loop on Vega Iron NOT NORMAL

Hello I'm a user of a Sky Vega Iron (IM-A870)
And I need desperate help.
It's not an ordinary boot loop I wish it was, here's the story.
I rooted my phone just to let you know.
So I installed the wrong version of cwd recovery on my phone and so when I go into recovery mode the screen will turn like this.
imgurDOTcom/iOFieHG (sorry I can't you links yet cause I'm new)
But it wasn't a big deal I just didn't use it.
Now is the deal I decided to update my phone to stock kitkat that the vega devs supported themselves with vega station(the stock updating app)
And when it started installing it suddenly went into cwm.
I wasn't that worried at the moment just tried pulling the battery out and rebooting but...it started a boot loop.
I can't navigate cwm because of the way it is and I'm stuck. Is there another way to factory reset? or to get out of the loop?
Maybe a way to get rid of cwm and get back to stock recovery mode? Please help I need help until tomorrow! (personal reasons)
I searched online hours for solutions yet I can't find one.
Please help. I'm begging anyone out there.
Thank You
Cottyn said:
Hello I'm a user of a Sky Vega Iron (IM-A870)
And I need desperate help.
It's not an ordinary boot loop I wish it was, here's the story.
I rooted my phone just to let you know.
So I installed the wrong version of cwd recovery on my phone and so when I go into recovery mode the screen will turn like this.
imgurDOTcom/iOFieHG (sorry I can't you links yet cause I'm new)
But it wasn't a big deal I just didn't use it.
Now is the deal I decided to update my phone to stock kitkat that the vega devs supported themselves with vega station(the stock updating app)
And when it started installing it suddenly went into cwm.
I wasn't that worried at the moment just tried pulling the battery out and rebooting but...it started a boot loop.
I can't navigate cwm because of the way it is and I'm stuck. Is there another way to factory reset? or to get out of the loop?
Maybe a way to get rid of cwm and get back to stock recovery mode? Please help I need help until tomorrow! (personal reasons)
I searched online hours for solutions yet I can't find one.
Please help. I'm begging anyone out there.
Thank You
Click to expand...
Click to collapse
this seems like a bit of a pia, but it looks like the only way i can find. click the link under the video for detailed text instructions.
Thanks but failed
Thank you so much but it didn't work.
Thinking of going to a service center and getting it factory reset.
Think it'll work?
Cottyn said:
Thank you so much but it didn't work.
Thinking of going to a service center and getting it factory reset.
Think it'll work?
Click to expand...
Click to collapse
not sure, cant hurt to try.
bweN diorD said:
not sure, cant hurt to try.
Click to expand...
Click to collapse
Is there a way to factory reset by myself?
I have to fix it today but the service centers are closed for sundays.(once again personal issues)
Thank you again
Cottyn said:
Is there a way to factory reset by myself?
I have to fix it today but the service centers are closed for sundays.(once again personal issues)
Thank you again
Click to expand...
Click to collapse
you would need to get to one of 2 places, i thought you couldn't get to either, settings (from booted up) or recovery.
but factory resetting would only remove any data, it will not restore any files or fix your busted cwm.
bweN diorD said:
you would need to get to one of 2 places, i thought you couldn't get to either, settings (from booted up) or recovery.
but factory resetting would only remove any data, it will not restore any files or fix your busted cwm.
Click to expand...
Click to collapse
Oh so then factory resetting won't get me out of my boot loop?
Cottyn said:
Oh so then factory resetting won't get me out of my boot loop?
Click to expand...
Click to collapse
i cant say that for sure, all im saying is, factory reset does nothing more than wipe data.
if there is an issue in there causing your problem, then yes it will fix it. if your problem is caused by a software issue, then no it will not.
bweN diorD said:
i cant say that for sure, all im saying is, factory reset does nothing more than wipe data.
if there is an issue in there causing your problem, then yes it will fix it. if your problem is caused by a software issue, then no it will not.
Click to expand...
Click to collapse
Okay thank you for everything really
I've given up I think there's nothing I can do.
Next time I get a phone I'm not screwing with it
Cottyn said:
Okay thank you for everything really
I've given up I think there's nothing I can do.
Next time I get a phone I'm not screwing with it
Click to expand...
Click to collapse
lol, ok, no problem.
I feel the pain
Cottyn said:
Hello I'm a user of a Sky Vega Iron (IM-A870)
And I need desperate help.
It's not an ordinary boot loop I wish it was, here's the story.
I rooted my phone just to let you know.
So I installed the wrong version of cwd recovery on my phone and so when I go into recovery mode the screen will turn like this.
imgurDOTcom/iOFieHG (sorry I can't you links yet cause I'm new)
But it wasn't a big deal I just didn't use it.
Now is the deal I decided to update my phone to stock kitkat that the vega devs supported themselves with vega station(the stock updating app)
And when it started installing it suddenly went into cwm.
I wasn't that worried at the moment just tried pulling the battery out and rebooting but...it started a boot loop.
I can't navigate cwm because of the way it is and I'm stuck. Is there another way to factory reset? or to get out of the loop?
Maybe a way to get rid of cwm and get back to stock recovery mode? Please help I need help until tomorrow! (personal reasons)
I searched online hours for solutions yet I can't find one.
Please help. I'm begging anyone out there.
Thank You
Click to expand...
Click to collapse
I am going through a similar situation here. I was using Choi Mobil Recovery and was trying to flash a custom ROM. It's now in BootLoop and there is nothing I can do!
fakesoul said:
I am going through a similar situation here. I was using Choi Mobil Recovery and was trying to flash a custom ROM. It's now in BootLoop and there is nothing I can do!
Click to expand...
Click to collapse
what variant of vega iron you were using and what rom youre trying to flash?

[Q] [Help] Random Reboots after Corrupted EFS partitions.

TL: My efs partition got screwed so my phone doesn't get service which is sad, But when I turn it on, after just working for a few minutes, it just reboots, which is very annoying, does anyone have a solution for this?
Long Version:
I was on the bus home when my phone went out of charge and died, after getting home I plugged it in, but it was stuck on a Loop, which led to me flashing a bunch of Kernels, and ROMs, later one ROM did work and the phone booted up, but my IMEI was gone so I knew my efs partition was screwed, and I just gave up, I still want to use my Nexus 5 as a normal but without the phone feature, which is somewhat okay,
and One weird problem that came to mind is I cannot install any ROM with version 5.0.2, it just won't boot up, but 5.0.1 is okay...but my phone just Reboots every 1-10 mins, I don't know what the problem is, and I don't know how to check whether or not its the power button, anyone have a good idea for solving this ?
You must have corrupted persist partition. Same as here: http://forum.xda-developers.com/google-nexus-5/help/nexus-5-bootloop-t3047895 the strange thing you both have is that you experience reboot. Are you on lollipop rom?
Also to fix persist follow this guide: http://forum.xda-developers.com/google-nexus-5/general/guide-to-fix-persist-partition-t2821576
bitdomo said:
You must have corrupted persist partition. Same as here: http://forum.xda-developers.com/google-nexus-5/help/nexus-5-bootloop-t3047895 the strange thing you both have is that you experience reboot. Are you on lollipop rom?
Also to fix persist follow this guide: http://forum.xda-developers.com/google-nexus-5/general/guide-to-fix-persist-partition-t2821576
Click to expand...
Click to collapse
Yes I'm on a Lollipop rom, and I already applied the presist fix, it didn't change anything.
Did you try to flash stock google image?
Sharo93 said:
Yes I'm on a Lollipop rom, and I already applied the presist fix, it didn't change anything.
Click to expand...
Click to collapse
kirmr said:
Did you try to flash stock google image?
Click to expand...
Click to collapse
Try to flash cache.img in fastboot. If it still does not help, then your EFS is indeed corrupted. I wish I knew a method to fixing efs.
kirmr said:
Did you try to flash stock google image?
Click to expand...
Click to collapse
Yes I already did, I have almost tried everything, short of sending it to repairs which I can't because where I live there is no such place.
bitdomo said:
Try to flash cache.img in fastboot. If it still does not help, then your EFS is indeed corrupted. I wish I knew a method to fixing efs.
Click to expand...
Click to collapse
I already did that...I know the efs is corrupted...the only fix i think is using something like Octoplus Box or something
Sharo93 said:
TL: My efs partition got screwed so my phone doesn't get service which is sad, But when I turn it on, after just working for a few minutes, it just reboots, which is very annoying, does anyone have a solution for this?
Long Version:
I was on the bus home when my phone went out of charge and died, after getting home I plugged it in, but it was stuck on a Loop, which led to me flashing a bunch of Kernels, and ROMs, later one ROM did work and the phone booted up, but my IMEI was gone so I knew my efs partition was screwed, and I just gave up, I still want to use my Nexus 5 as a normal but without the phone feature, which is somewhat okay,
and One weird problem that came to mind is I cannot install any ROM with version 5.0.2, it just won't boot up, but 5.0.1 is okay...but my phone just Reboots every 1-10 mins, I don't know what the problem is, and I don't know how to check whether or not its the power button, anyone have a good idea for solving this ?
Click to expand...
Click to collapse
I have pretty much the same issue you do so I'm going to stay posted here.
Do you have an old TWRP backup?
Try to restore any TWRP backup you made of your phone.
Unless you unchecked If you checked that option before making the backup, the EFS partition should be present in the backup.
Best of luck
Anjo_Smash said:
I have pretty much the same issue you do so I'm going to stay posted here.
Click to expand...
Click to collapse
The efs is not gonna get fixed unless you have special tools for it, but the random reboots have spotted ever since I installed the Pure White ROM
joegestes said:
Try to restore any TWRP backup you made of your phone.
Unless you unchecked that option before making the backup, the EFS partition should be present in the backup.
Best of luck
Click to expand...
Click to collapse
Unfortunately I don't have such a back up, I do however have access to two other Nexus 5s, which i don't want to mess with their IMEI because google might block something and them getting screwed is a no-no...I don't know if my Phone service provider would mind if They see the same IMEI coming up on there system twice, but I don't wanna risk it..
Sharo93 said:
Unfortunately I don't have such a back up, I do however have access to two other Nexus 5s, which i don't want to mess with their IMEI because google might block something and them getting screwed is a no-no...I don't know if my Phone service provider would mind if They see the same IMEI coming up on there system twice, but I don't wanna risk it..
Click to expand...
Click to collapse
Do not try to restore an efs from another device. It won't work and you'll make your problem worse.
Sent from my Nexus 5 using XDA Free mobile app
Sharo93 said:
Unfortunately I don't have such a back up, I do however have access to two other Nexus 5s, which i don't want to mess with their IMEI because google might block something and them getting screwed is a no-no...I don't know if my Phone service provider would mind if They see the same IMEI coming up on there system twice, but I don't wanna risk it..
Click to expand...
Click to collapse
Man that sucks
Lesson learned I guess, always make a full backup of your device in its original factory state when you buy it.
Sorry for your loss

Samsung Tab 2 GT-P3100 bootloop and odin fail.

My TAB 2 7.0 was not rooted and was in the bootloop all of a sudden. The issue is when it reboots, it lets me enter lock screen password and when I try to use something - It reboots. I tried to do the Clear cache partition and Factory Reset from android boot menu (power + volume up button) which says that DATA WIPE COMPLETE but when I reboot the tab nothing changes, not even the WIFI connections and their passwords. The WiFi remains on and connected to my router.
I deleted those connection from Settings but again it reboots and all deleted wifi connections (which were successfully deleted) are back with their passwords.
I also tried RESET DEVICE from settings, it asked me for my password but when i entered it and tapped on reset my device option - BOOM! it reboots again without resetting.
I searched a lot on net and tried ODIN option with proper firmware but of no use. And most importantly, I did visit authorized service centre before doing any of these, they returned it after trying couple of time to flash it and asked me to change the motherboard(Which would cost me about the price of good android phone - $120).
Can anybody please suggest me any other option than changing the motherboard (which is way much higher than my budget). The option you suggest may be hardware repair or anything else, I may not be able to get it done myself if it is hardware thing but atleast it will help to search the repair option by precisely telling the guy (technician) - what to do?
I have posted this after i saw mentions online about this forum and experts here, I hope you guys help me out as this TABLET is of great use to me.
:crying:
notsogeeky said:
My TAB 2 7.0 was not rooted and was in the bootloop all of a sudden. The issue is when it reboots, it lets me enter lock screen password and when I try to use something - It reboots. I tried to do the Clear cache partition and Factory Reset from android boot menu (power + volume up button) which says that DATA WIPE COMPLETE but when I reboot the tab nothing changes, not even the WIFI connections and their passwords. The WiFi remains on and connected to my router.
I deleted those connection from Settings but again it reboots and all deleted wifi connections (which were successfully deleted) are back with their passwords.
I also tried RESET DEVICE from settings, it asked me for my password but when i entered it and tapped on reset my device option - BOOM! it reboots again without resetting.
I searched a lot on net and tried ODIN option with proper firmware but of no use. And most importantly, I did visit authorized service centre before doing any of these, they returned it after trying couple of time to flash it and asked me to change the motherboard(Which would cost me about the price of good android phone - $120).
Can anybody please suggest me any other option than changing the motherboard (which is way much higher than my budget). The option you suggest may be hardware repair or anything else, I may not be able to get it done myself if it is hardware thing but atleast it will help to search the repair option by precisely telling the guy (technician) - what to do?
I have posted this after i saw mentions online about this forum and experts here, I hope you guys help me out as this TABLET is of great use to me.
:crying:
Click to expand...
Click to collapse
I never encountered a problem like this before but 2 years screwing with my tab (well bootlooping it with myself) I would suggest rooting it via Odin and Flash TWRP (CWM works too but I prefer TWRP) through odin as well.
After that find a custom ROM, preferably a stable build since you'll be using it for daily use and flash it using TWRP. I would suggest downloading SlimKat or Cyanogen Mod 13 and GAPPS.
You can find a lot of guides (some are step by step) about rooting it through Odin, and flashing TWRP on your tab.
As well as custom ROMS and how to flash it.
Tell me how it goes dude. Goodluck
Edit:
Hmm before flashing custom ROMs, when you try to flash a firmware. Did you make sure that you're using a correct driver for your PC? Samsung Kies does the job but make sure to close Samsung Kies in order to avoid conflicts with Odin. Make sure also to switch your tab to Download Mode when you flash with Odin.
Factory reset but asif nothing happened? I'm sorry but your tab has the dreaded eMMc bug. Only an emmc replacement or a new motherboard can fix it. Sorry.
Sent from my espresso3g using XDA Labs
DeepBricked said:
I never encountered a problem like this before but 2 years screwing with my tab (well bootlooping it with myself) I would suggest rooting it via Odin and Flash TWRP (CWM works too but I prefer TWRP) through odin as well.
After that find a custom ROM, preferably a stable build since you'll be using it for daily use and flash it using TWRP. I would suggest downloading SlimKat or Cyanogen Mod 13 and GAPPS.
You can find a lot of guides (some are step by step) about rooting it through Odin, and flashing TWRP on your tab.
As well as custom ROMS and how to flash it.
Tell me how it goes dude. Goodluck
Edit:
Hmm before flashing custom ROMs, when you try to flash a firmware. Did you make sure that you're using a correct driver for your PC? Samsung Kies does the job but make sure to close Samsung Kies in order to avoid conflicts with Odin. Make sure also to switch your tab to Download Mode when you flash with Odin.
Click to expand...
Click to collapse
Dude, firmware flashing was already tried by the technician at the authorised service center, even he couldnt flash it. I tried flashing as you said. But when i went through all the step by step tutorials on flashing or rooting through odin, they all wanted me to turn on the developers options in settings which I can't. Even if i manage to do that, it will just reverse right away after reboot.
The TWRP thing and rooting through odin that you told me are the options left with me. But I am not familiar with all those things so It would be great if you can share any link about the step by step method.
Lightracer said:
Factory reset but asif nothing happened? I'm sorry but your tab has the dreaded eMMc bug. Only an emmc replacement or a new motherboard can fix it. Sorry.
Sent from my espresso3g using XDA Labs
Click to expand...
Click to collapse
New motherboard is way beyond my budget, so I am left with only one option i.e. eMMC replacement. Is eMMC readily available in the market, if yes then is there any trusted brand or something like that.
notsogeeky said:
New motherboard is way beyond my budget, so I am left with only one option i.e. eMMC replacement. Is eMMC readily available in the market, if yes then is there any trusted brand or something like that.
Click to expand...
Click to collapse
Unfortunately, I am not familiar with eMMc replacement although @Android-Andi does have a friend in Austria who can replace/upgrade it for you according to one of his posts.
Although if you ask me, you're better off buying another more recent tablet.
Sent from my espresso3g using XDA Labs
Lightracer said:
Unfortunately, I am not familiar with eMMc replacement although @Android-Andi does have a friend in Austria who can replace/upgrade it for you according to one of his posts.
Although if you ask me, you're better off buying another more recent tablet.
Sent from my espresso3g using XDA Labs
Click to expand...
Click to collapse
Thanks man. At least now I know what the issue is and what may be the best solution. I am from India so will have to search someone who replaces eMMC here.
It's only 11 screws & 25 bucks (USA) for a motherboard
http://www.ebay.com/itm/like/131488094589
Sent from my SAMSUNG-SM-G870A using XDA Free mobile app

I bricked my S7... can it be fixed?

So I modded the hell out of my stock rom and eventually broke it. After failing to flash the stock firmware about 50 times I gave up and put Lineage OS on my phone. Eventually I decided I wanted to try putting the stock back on and somehow screwed up my IMEI crap and don't have a backup. Basically all my phone can do is run stock rom but without any mobile network support or the same thing with Lineage OS. I've spent hours trying to fix it but nothing's worked. I checked just about every guide I've been able to find and none of them work. the issue is either not fixed or there's some kind of an error/change during the process that makes it so I can't continue. I downloaded some combination file that is supposed to help fix the issue but it won't flash via ODIN like the guide says so i can't do that.
I really need this phone up and working again. Anyone got any ideas? As of right now I have a paper weight that I can browse the internet on.
Update: I fixed it by flashing Android 8.0.0 firmware onto my phone instead of 7.0.0. I'm not sure why that fixed it because even lineage OS couldn't get my IMEI number but it's working now.
PimpWithALimp95 said:
So I modded the hell out of my stock rom and eventually broke it. After failing to flash the stock firmware about 50 times I gave up and put Lineage OS on my phone. Eventually I decided I wanted to try putting the stock back on and somehow screwed up my IMEI crap and don't have a backup. Basically all my phone can do is run stock rom but without any mobile network support or the same thing with Lineage OS. I've spent hours trying to fix it but nothing's worked. I checked just about every guide I've been able to find and none of them work. the issue is either not fixed or there's some kind of an error/change during the process that makes it so I can't continue. I downloaded some combination file that is supposed to help fix the issue but it won't flash via ODIN like the guide says so i can't do that.
I really need this phone up and working again. Anyone got any ideas? As of right now I have a paper weight that I can browse the internet on.
Update: I fixed it by flashing Android 8.0.0 firmware onto my phone instead of 7.0.0. I'm not sure why that fixed it because even lineage OS couldn't get my IMEI number but it's working now.
Click to expand...
Click to collapse
Quickest way to solve the issue as you've found out is to flash latest stock for device. Bootloader was the source of your problems, once upgraded it cannot be downgraded no matter what. All these bull sh1t guides saying you can just end up with a bricked phone.
Now BACK UP your EFS partition so this doesn't happen again.
cooltt said:
Quickest way to solve the issue as you've found out is to flash latest stock for device. Bootloader was the source of your problems, once upgraded it cannot be downgraded no matter what. All these bull sh1t guides saying you can just end up with a bricked phone.
Now BACK UP your EFS partition so this doesn't happen again.
Click to expand...
Click to collapse
I am planning on install a One UI Based rom on my S7, my phone is running stock without any rood or something like this.
How to flash the Rom without making a stupid thing that will brick my phone? i mean how to start all the process from zero?
And another thing i wonder about, what is the IMEI thing that you guys talked about?
rheh104 said:
I am planning on install a One UI Based rom on my S7, my phone is running stock without any rood or something like this.
How to flash the Rom without making a stupid thing that will brick my phone? i mean how to start all the process from zero?
And another thing i wonder about, what is the IMEI thing that you guys talked about?
Click to expand...
Click to collapse
1. Go here to download TWRP an install it via ODIN,
https://twrp.me/Devices/Samsung/
2. In TWRP select backup and choose only EFS and back it up to your external card (preferably also to your PC)
that will backup your IMEI etc
Huzaifa_Aziz said:
1. Go here to download TWRP an install it via ODIN,
https://twrp.me/Devices/Samsung/
2. In TWRP select backup and choose only EFS and back it up to your external card (preferably also to your PC)
that will backup your IMEI etc
Click to expand...
Click to collapse
EFS?
rheh104 said:
EFS?
Click to expand...
Click to collapse
Encrypted File System
rheh104 said:
EFS?
Click to expand...
Click to collapse
I think you need to go tutorial section first. And start from scratch. You won't be able to find the cotrects steps on dumb luck. Thank me later.
Huzaifa_Aziz said:
I think you need to go tutorial section first. And start from scratch. You won't be able to find the cotrects steps on dumb luck. Thank me later.
Click to expand...
Click to collapse
Send me a link to it please, thanks!
rheh104 said:
Send me a link to it please, thanks!
Click to expand...
Click to collapse
You have Exynos or Qualcomm variant?
I would suggest you start off from here
[LINK]https://forum.xda-developers.com/galaxy-s7/help/help-thread-question-noob-friendly-t3341138[/LINK]
rheh104 said:
Send me a link to it please, thanks!
Click to expand...
Click to collapse
I hope you have read about ODIN and FLASHING recovery by now,
https://forum.xda-developers.com/galaxy-s7/development/recovery-official-twrp-herolte-t3333770 go here and flash the TWRP RECOVERY and then install any custom ROM. or
Get original Firmware from Sammobile.com and Flash it via ODIN

A51 Bootlooping and Freezing - Any ideas?

Hello,
So I have an international A51 model and have had it for over a year. Recently, it froze while using the browser and now continually bootloops. When I'm able to enter the OS, it freezes up again. I've tried clearing the cache, doing a factory reset, and even tried to flash the original firmware via ODIN. When I'm able to boot in now, it takes me to set up and tells me there was an unauthorized factory reset attempt. Usually freezes up shortly thereafter.
Any advice would be appreciated.
Did you succeed in flashing firmware using Odin?
dedq said:
Did you succeed in flashing firmware using Odin?
Click to expand...
Click to collapse
First time I tried to change CSC from country of origin to my own. It said success but phone was still bootlooping. Second time I used the original firmware and CSC and had the same result
It's hard bricked if you cannot do anything even after flashing official firmware.
dedq said:
It's hard bricked if you cannot do anything even after flashing official firmware.
Click to expand...
Click to collapse
Is there anything Samsung can do or am I just out of luck entirely?
Interesting thread, seems like hardware problem(the EMMC internal storage chip is failing.)
Do you still have warranty?
Hawk of Light said:
Is there anything Samsung can do or am I just out of luck entirely?
Click to expand...
Click to collapse
Samsung can but I think you would have to pay if you don't have warranty which is not even a guarantee since warranty doesn't cover user modifications.
Take it to some unofficial store and you may end up paying less.
So Samsung's policy here is a 2 year warranty for Australian models, 1 year for international warranty. My model is from the UAE and so my warranty has ended. They've told me they will try to fix it but can take between 1 - 6 days up to 6 weeks depending on the issue. I'll follow that up.
If they're able to fix it I'll update this thread with the issue as to maybe help someone else. Thanks for your contributions.

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