Tab S2 (SM-T817T) Bootloop - Galaxy Tab S2 Q&A, Help & Troubleshooting

Hello every one!
I am having bootloop problems on my tab s2 SM-T817T. I tried to flash the firmware through odin using stock firmwares from Sammobile. I was able to flash the Android 6.0 firmware but when it booted, it became extremely slow. I tried to turn on wifi and it keeps turning off by itself. It is so slow I cannot even set up my google account. I tried to flash the 5.0 firmware but there was a rev check failture.
I tried to flash the android 6.0 firmware again and the bootloop problems comes back again. I was able to wipe the cache but I was unable to do a factory reset. There was an error message saying that there was an issue mounting the drive.
Can anyone please kindly help me? thank you!

Related

[Q] problem with odin???

hi guys i own this device since february 2012 i think but i never had problems installing various roms and using odin.
yesterday i wanted to install xwktu stock firmware using odin but when it finishes i get a bootloop :/ the strangle thing is that xwktu firmware is the only not working!!! all othr stock firmwares are working well.already tried using mobile odin and redownloading the firmware... any help?
After flashing try wiping data from recovery
already tried still bootloop

[Q] [HELP] Need help unbricking SM-G900V

In the process of rooting my Galaxy S5 I ended up soft-bricking my phone so that it's now in a bootloop. At this point I just want to restore the phone to factory default but I'm having issues doing so.
The issue came when I tried to flash a ROM onto my device using Odin3 which was successful but then, on restart, I got this bootloop. I've now tried a few different ways to fix.
I've:
Cleared cache partition and user data
Tried to use Odin v3.10 to flash stock for different builds (G900VVRU1BOD5, G900VVZW1BOC4,G900VVZW1BOA8) (I believe the phone was on G900VVRU1BOD5 before the bootloop)
I was also stupid and didn't do a backup beforehand.
This thread (http://forum.xda-developers.com/showpost.php?p=53454972) seems to suggest that I need to flash the CP and CSC along with the AP but I haven't been able to locate these files.
Any help would be appreciated!
Errors
I guess I forgot to mention that when I attempt to flash the stock firmware I get a FAIL! (Auth) error from Odin almost immediately no matter which ROM I try.
I had this problem. After days of fighting it I went into the stock recovery and did a factory data reset and that fixed it.
Sent from my SAMSUNG-SM-G900A using Tapatalk
are you trying to flash a ATT stock rom to your Verizon Phone??
Thanks for the replies. I have stock BL and I've tried the reset there and it hasn't helped.
I have a Verizon S5 and am using Verizon stock firmware. Looks like I accidentally posted this in the ATT S5 general section. Sorry...

Cannot instal STOCK ROM after instlling CM12/13

Hi!
I have installed TWRP and CM13 on my S5 mini (G800F), but i got many bugs and restarts, so i decided to go back to Stock ROM, unfortunatelly i cannot do this.
When i open Odin and try to install STOCK Rom from samsungmobile everything is good, till the and, when i got:
Write finished (filed)
<OSM> All threads completed. (succeed 0 / failed 1)
I tried on laptop and deskop using various USB port but everytime i get the same message.
And when i get the battery out and power on i get:
"firmware upgrade enountered an issue. Please select recoery mode in Kies and try again"
I tried to connet it with Kies in recovery odin mode but Kies does not recogenize it.
Then i need my phone so i decided to move back to CM this time i have installed the CM12, after using it, one day and having many restarst i tried one more to move to STOCK ROM. I downloaded the older verios of STOCK ROM then i had before. But i got the same messege.
Then someone tell mi to make full wipe, so using TWRP i done the full wipe, cache, data, system and internal storage/sd.
After wipeing internal storage i get only:
"firmware upgrade enountered an issue. Please select recoery mode in Kies and try again"
and cannot even install recovery via Odin any more, beacouse i get bugs ;/ ;/ ;/
as a result i cannot even use my phone with CM12/13.
1. Do You have any tips or solution of this problem?
2. How can I instal STOCK ROM or even CM?
3. Can I install the CM via Odin?
4. Do You have any other recovery for S5 mini G800F?
He there, sorry to hear you're having troubles with the phone. I experienced a similar problem and found that this worked:
Try and flash your stock firmware, when it fails, take out battery, put it back in and restart into recovery mode (stock recovery). From there, do a factory reset and wipe (not using Team Win Recovery Project, using the stock Recovery).
Now go back to odin and try flashing again.
Hope this helps...it worked for me.
Do this when error occurs after flashing stock firmware!
1. Flash stock firmware
2. Get error message
3. Remove battery and start in Recovery Mode
4. Flash hidden.img that you can extract of the stock file!
Quote from reddit.com:
If you've tried to flash firmware off of Sammobile, and had your heart stop when the flash fails, fear no longer.
To fix the soft brick:
Open the firmware file in winrar and extract the hidden.img. Rename it as hidden.img.tar.
Load the new file into the PDA tab, and flash.
When the phone boots, the displayed image will be touchwiz teal, there will be a little android and GALAXY spelt above it. Don't freak out.
Give it a minute and it should boot.
Hi, jest i did happend after flashing a stock firmware, but fortunatelly now it work.
How do i manage to fix it? I do not know. I just tried to flash it with a stock firmware one more time, and than tried to flash TWRP recovery via Odin. It get a fail. But the phone got power on, and it works till now !!!!
What was the problem? I have read that if you have the other CSC than XEO and want to flash the ROM with XEO CSC on S5 mini this problem occurs on many phone. Espesially on that from UK, so mine was.
thanks!!
Kuba

odin flash error. Flash keeps failing. Emmc error

ok so i have a note 4 n910t. It started to act up two days ago rebooting randomly and i did a factory reset along with clearing cache. It was on stock 5.1.1 dok2. I then tried to odin the firmware instead and i ran into some errors. Odin wouldnt finish and always fails and the phone in download mode says flash error failed and sometimes i had emmc error.
I tried even the PIT file with the stock firmware. I cannot try any other firmware with odin because you cannot downgrade after on dok2.
Can someone please help with this issue?
Did you try smartswitch?
Pp.

help please!

Hi everyone i desperately need some help, i had a rooted note 4 gave it to my cousin in greece, he just came back and i told him i would update it, i downloaded tekx"s rom and installed i did a full wipe as usual, after it installed the phone kept on rebooting over and over again, so i thought maybe i had to update the firmware, i tried doing that but i keep getting a fail message i cant update anything. so i rerooted the phone tried updating the firmware again and still getting a fail message. so now i dont have anything on the phone i am only able to go into recovery or down load mode, cant go into any type of settings on the phone incase i forgot to unlock something in there. i've looked everywhere on the net and cant find any type of solution, can someone help me out please? Thank you
panitsos said:
Hi everyone i desperately need some help, i had a rooted note 4 gave it to my cousin in greece, he just came back and i told him i would update it, i downloaded tekx"s rom and installed i did a full wipe as usual, after it installed the phone kept on rebooting over and over again, so i thought maybe i had to update the firmware, i tried doing that but i keep getting a fail message i cant update anything. so i rerooted the phone tried updating the firmware again and still getting a fail message. so now i dont have anything on the phone i am only able to go into recovery or down load mode, cant go into any type of settings on the phone incase i forgot to unlock something in there. i've looked everywhere on the net and cant find any type of solution, can someone help me out please? Thank you
Click to expand...
Click to collapse
Flash latest stock firmware in odin .
Once odin shows PASS go to stock recovery and do factory reset and wait 15 minutes to boot.
Do you have N910T tmobile note 4 ?
Link below for n910t latest firmware.
Extract the file and flash using odin choose AP
https://www.androidfilehost.com/?fid=385035244224408290
Trex888 said:
Flash latest stock firmware in odin .
Once odin shows PASS go to stock recovery and do factory reset and wait 15 minutes to boot.
Do you have N910T tmobile note 4 ?
Link below for n910t latest firmware.
Extract the file and flash using odin choose AP
https://www.androidfilehost.com/?fid=385035244224408290
Click to expand...
Click to collapse
i tried the cog2 the dok firmware nothing it fails all the time. if i try flashing this newer firmware and it works by some chance then i'm worried i wont be able to get a rom to work because from what i've seen most roms are cog2 or doc 6
panitsos said:
i tried the cog2 the dok firmware nothing it fails all the time. if i try flashing this newer firmware and it works by some chance then i'm worried i wont be able to get a rom to work because from what i've seen most roms are cog2 or doc 6
Click to expand...
Click to collapse
yes i have a tmboile note 4

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