help on samsung tab s7 plus bootloop - Samsung Galaxy Tab S7 / S7 Plus Questions & Answer

I need help on my tab s7 plus 512 GB(sm-t970 WiFi version). It doing bootloop on Samsung tab s7 plus by knox logo(not the samsung logo) and restarting it self. I did use Odin put back on stock firmware and It show pass and rebooting.
Still doing same thing.I only can get download mode.I cant put in android recovery mode.
When I in downloading mode I saw frp mode is on .....there is no way to getting in android to disabled the frp and imei was empty.
Everything is stock never root and unlock....I only have for 4 month and warranty is out.
Please help.

Since you have a warranty, take it to the place where you bought it, let them do it for you before you mess it up even more.

Still not working

Warranty is out on October

Newupdate I fix the bootloop by change and keep hold volume down then press power few time...
It pop up android logo and erase ....then it rebooting it self.
Back to stock firmware ....

thanks to @hainguyenthao take time to fix my tablet.
now my tablet is back to normal.
​

Related

[Q] [ Gt-i8552 ] Samsung galaxy grand quattro No Boot, no ADB, no Recovery!!!

Hi,
I've a Samsung galaxy grand quattro - GT-i8552
My Phone is not booting up,
When I re-insert the battery it shows me the Samsung logo with a single Vibration and immediately after a few second screen goes black :crying: and nothing works not even Charging .
I can not get into Download mode , not even into recovery.
Please help me ASAP
P.S. I am not sure what all I need to attach here , tell me if You need any kind of Details of my phone, I'll provide.
Did you do something with your phone, such as rooting or flashing another ROM? When it stopped working?
3435
freitaz said:
Did you do something with your phone, such as rooting or flashing another ROM? When it stopped working?
Click to expand...
Click to collapse
Thank you For Reply Sir,
Yes I Had Rooted my phone using Kingo Root But a few days Back before it stopped working.
PS. My phone had some other than stock recovery which was installed by Kingo Root at the time of Rooting itself.
Keep trying to get into download mode (VOL DOWN + HOME + POWER). If you succeed, download stock rom from http://sammobile.com and flash it with Odin.
If you really can't get into download mode, you will need to send your device to Samsung service center to repairs.
Today when I was Searching over the Web about this problem I came to know about the thing known as USB JIG, which is used Unbrick HardBricked Phones, So I was thinking to try it.
What do you Suggest? Should I Give it a try or not?
I, personally, would give it a try. I don't know if it will work. If you are willing to risk, it may work for you.
Im following this guide to create my own jig and use it for my device to get it to the Download mode.
One more thing I noticed today ..
Today When I reinserted my Battery it was not showing me anything so thought My battery was totally drained out in this phone itself, so I put it on Charging and it didn't show up anything such as charging on the Screen but it did Charge my Phone.
can you tell me What does this suppose to mean??
Does it signal that I still have got some chances to revive my phone??
I would say that this only mean that your device is charging, although it doesn't show any signal of it.
You may have a chance to revive your phone. Also, if you have a custom recovery installed, you could try to flash a custom rom. You can boot on recovery pressing VOL UP + POWER + HOME buttons.
Thank you for support friend, I got my problem solved.
There was a problem with the power button, I got it replaced from the Samsung service centre nd now it works like a charm.

Galaxy S3 stuck on bootscreen (can't access recovery mode)

Hi, today I tried to downgrade my Galaxy S3 from Cyanogen 12 to stock firmware (So from Lollipop to Jellybean) but now it's stuck on the bootsceen and I can't access the recovery mode, I can just access download mode.
Hi Hencick - Welcome to XDA.
I'll just naturally assume that you're familiar with flashing roms...
Were you running a custom kernel with CM?
Can you access adb functions with a pc?
I have a similar problem on my phone I discovered today. I just get the Samsung logo on screen, it goes off, then comes back (bootloader loop i guess).
It was just sitting on charge. It hasn't done anything for a while other than updates, now when I come to it, it's like this.
I can't get into recovery mode, adb mode, download mode or anything. Just the Samsung logo flashing up, then going and coming back up.
Is this recoverable?
As it it keeps powering up, then off, then back up I'm not even sure I can use Odin on it.
TIA.
Edit: Ok, I can get it into download mode it seems. Only, now I'm not sure what to do! lol

Samsung S3 i9300 Stuck in bootloop

Hey everyone! Big problem..
I have installed CM12, Android 5.1 it's been all fine up until now, I was planning on selling the phone, so I factory reset it, that went well until it tried to turn itself back on afterwards.
My Samsung Galaxy S3 i9300t is stuck in a bootloop. I can not do absolutely anything.
I've tried taking the battery out, holding the three buttons, putting it back in, doing that with a USB, As soon as I turn it on, holding buttons or not it goes straight into a bootloop. I can't use odin to install the custom firmware again as I can't get into recovery or download mode or anything, once it's in the boot loop it stays there..
Any help is appreciated.
Bump?

Soft Bricked Galaxy Tab S 10.5 SM-T805

Had a real bad day!!!!
I was flashing a new ROM with TWRP and somehow deleted the OS, all I get is the Samsung Logo.
I can't enter recovery/download mode, my computer (odin/Adb) won't recognise it.
Help would massively be appreciated.
Thanks
you should be able to boot into recovery with volume down + power (or whatever the shortcut on your phone is).
i still can boot in recovery with that on my op3 even in bootloop.
if it doesnt work remove battery. if its fixed youll have too wait till its empty i guess when adb doesnt work also.

Galaxy S6 Edge, does not boot up - only download mode possible

Hello dear users of xda.
I have read alot of threads on several forums to find a fix for my broken phone, since I am hoping that the problem is caused by the software, rather than the hardware.
Sadly I was not able to find the fix yet and therefor you guys are my last shot at this issue. This account is also freshly registered, so I will not be able to post any links or images to help you guys out understanding what happened ... so please just bear with me here
Since I am from Germany I hope you can also excuse small mistakes regarding my writing in this thread. Thank you in advance
Lets dive right into this with a few details:
Samsung Galaxy S6 Edge (SM-G925F)
Never rooted, flashed -> always official updates
Android 7 was up to date
Phone has no branding or any kind of simlock
What happened:
My phone was turned off a few days ago when I woke up. Since I always charge it over night it couldnt be out of power and that confused me.
I then pressed the On/Off-Button to start it and the phone booted up.
But the boot did get stuck on the Samung logo-animation. I mean the animation which is usually displayed after the big "Samsung Galaxy S6 Edge powered by Android".
I waited a minute or something and nothing happened, it seemed like the boot froze up and I turned it off.
When I booted it up again the samsung animation would not even finish and then freeze up. The animation is displaying the letters from left to right and it froze this time displaying only "Samsu".
After that I plugged the phone back into the wall to charge and went to the PC to google this issue. The phone displayed around 25% battery when I plugged it in.
So apparently it was not charging this night?
Anyways ... after googling and not finding any similiar problems I tryed to boot with Safe Mode ( holding Volume Down + On/Off Button .... no success) and then downloaded Samsung Switch and all drivers needed to get a device connected to the PC.
I connected the phone to the PC with an original Samsung cable and Samsung Switch was not showing anything until I entered the Download Mode on my phone by pressing Volume Down + Home + On/Off.
Then Samsung Switch displayed that the connected device was not compatible (even though it meets all requirements).
I went to the device manager to make sure that the drivers are working and the phone indeed was showing up in the list. It also disappeared properly when I unplugged it from the PC.
After that I again tryed out to boot the phone several times. It would always freeze up anywhere within that Samsung animation.
Not knowing what to do I thought an factory reset might help out and I pressed Volume Up + Home + On/Off for several seconds when the phone was turned off.
Nothing happened. I could only boot up the phone by pressing the On/Off button alone and by doing that it always froze up. Just the Download-Mode was accessable (Volume Down + Home + On/Off).
Since I had no way to recover or reset anything by using Samsung Switch or the Recovery Mode I decided to flash an official Samsung rom on the device using ODIN.
I downloaded the following:
Odin ( v3.12.3 )
Firmware ( G925FXXU5EQK8_G925FDBT5EQK1_G925FXXU5EQKF_HOME.tar.md5 // from a german android forum, information below )
FIRMWARE INFORMATION
Model: SM-G925F
Model name: Galaxy S6 edge
Country: Germany (DBT)
Version: Android 7.0
Changelist: 10958180
Build date: Thu, 09 Nov 2017 10:08:50
Android security patch level: 2017-11-01
Product code: DBT
PDA: G925FXXU5EQK8
CSC: G925FDBT5EQK1
When I connected the phone Odin was recognizing the device and I was able to flash the firmware successfully. Odin did not display any kind of errors.
After the flash the phone was still connected to the PC since I feared it would run out of power. I know that the first boot after a flash can take a while. Since the LED was flashing while the big "Samsung Galaxy S6 Edge" logo was displayed I thought it was doing something in the background. I kept it like this (big logo, LED flashing, plugged into the PC) for over an hour and nothing did change. The device was warm but I doubted that it's doing anything since one hour for a boot, even after flashing, is way too long.
After that hour I turned it off and it instantly started to boot up again, but this time and all the other times after that it kept getting stuck at the big logo. It did not proceed into the animation like before.
I tested if I could enter the Recovery Mode at this point but it still was only able to get into the Download Mode.
The only way to stop it from trying to boot now was to get into that Download Mode, else it would just keep looping around, but not turn off by its own.
Every now and then, instead of displaying the big logo, it showed a blue screen with a yellow warning sign and the android mascot laying on the ground with "No command" beneath it. If you want to see how it looks you can google images "android 7.0 no command" and look for the full blue screen pictures.
Googling this blue screen with no command said that it can be easily fixed by wiping the data/cache from your device. But as I said the recovery mode was not showing up when I pressed the buttons for it. So a friend of mine suggested using ADB or fastboot to wipe the cache / dalvik cache.
Using both (ADB + fastboot) the device was not detected. We made sure that the drivers were installed properly. There was and there still is no way to connect to the phone with these both tools. Sadly.
After the first try of using ADB/fastboot we decided that the issue might have been the firmware I downloaded in the beginning and we used SamFirm (v0.3.6) to download the newest firmware for my SM-G925F ( G925FXXU5EQK8_G925FDBT5EQK1_G925FXXU5EQKF_HOME.tar.md5 )
This firmware appears to be the same as the one I downloaded before, but this one was slightly bigger.
This is a paste of the SamFirm window:
Checking firmware for SM-G925F/DBT/G925FXXU5EQK8/G925FDBT5EQK1/G925FXXU5EQKF/G925FXXU5EQK8
Model: SM-G925F
Version: G925FXXU5EQK8/G925FDBT5EQK1/G925FXXU5EQKF/G925FXXU5EQK8
OS: Nougat(Android 7.0)
Filename: SM-G925F_1_20171129140113_g7auy18e0c.zip.enc4
Size: 1950442496 bytes
LogicValue: 8ikzg48ul7hryauq
The flash was again successfull and still the same problem remained: no full boot.... sometimes a blue no command mascot.
After that we flashed again but with another PIT file attached. At first we got an error after the hidden.img but after changing the PIT file to this one ( ZEROLTE_EUR_OPEN_HIDDEN300M ) it worked again without any errors displayed by Odin. Apparently the PIT file we used at first did not have enough space for our hidden.img ...
We flashed that firmware several times and sometimes after the flash there would be a blue screen with an android mascot saying it is erasing, but the animation of that mascot freezes also after 10 to 20 seconds. I've kept the phone in this blue screen for several hours (up to 5h I think) since a few forum threads said that it sometimes takes very long to work and the LED was actually flashing all the time, but nothing changed.
We did not try to flash anything else because the Reactivation Lock is enabled and I have no idea how to turn this thing off w/o booting the device.
I would not mind flashing a custom firmware on the device as long as it just works again. So if this is somehow possible and might be a solution I am up for it.
What currenctly is going on with the phone:
· It only turns completly off when the power runs out.
· No button combination is working to turn it off.
· I can enter Download Mode easily but I can not enter the Factory Reset Mode.
Within the Download Mode it says:
ODIN MODE
Product Name: SM-G925F
Current Binary: Samsung Official
System Status: Official
Reactivation Lock: On
Secure Download: Enabled
KNOX Warranty Void: 0 (0x0000)
RP SWREV: B:5 K:2 S:2
· The boot ends either up with showing an "Samsung Galaxy S6 Edge powered by Android" logo for the whole time (kept it like that for several hours, no boot)
· or with a blue screen (yellow warning sign, android mascot laying on the ground and a "no command" beneath it).
· Odin is recognizing it as a device.
· The device manager is recognizing the device.
· Samsung Switch is saying the device is not compatible.
· ADB/fastboot can not detect the device.
So ... is it possible to get this damn thing to work again or is it gone for good?
If you still got any questions regarding the current state of the phone please ask. I will try to reply ASAP.
Thank you very much for any reply you guys might throw at me.
It sounds like a hardware fault and your phone is kaput.
Interesting.I would love to open the phone to inspect it
FaKeT said:
Hello dear users of xda.
I have read alot of threads on several forums to find a fix for my broken phone, since I am hoping that the problem is caused by the software, rather than the hardware.
Sadly I was not able to find the fix yet and therefor you guys are my last shot at this issue. This account is also freshly registered, so I will not be able to post any links or images to help you guys out understanding what happened ... so please just bear with me here
Since I am from Germany I hope you can also excuse small mistakes regarding my writing in this thread. Thank you in advance
Lets dive right into this with a few details:
Samsung Galaxy S6 Edge (SM-G925F)
Never rooted, flashed -> always official updates
Android 7 was up to date
Phone has no branding or any kind of simlock
What happened:
My phone was turned off a few days ago when I woke up. Since I always charge it over night it couldnt be out of power and that confused me.
I then pressed the On/Off-Button to start it and the phone booted up.
But the boot did get stuck on the Samung logo-animation. I mean the animation which is usually displayed after the big "Samsung Galaxy S6 Edge powered by Android".
I waited a minute or something and nothing happened, it seemed like the boot froze up and I turned it off.
When I booted it up again the samsung animation would not even finish and then freeze up. The animation is displaying the letters from left to right and it froze this time displaying only "Samsu".
After that I plugged the phone back into the wall to charge and went to the PC to google this issue. The phone displayed around 25% battery when I plugged it in.
So apparently it was not charging this night?
Anyways ... after googling and not finding any similiar problems I tryed to boot with Safe Mode ( holding Volume Down + On/Off Button .... no success) and then downloaded Samsung Switch and all drivers needed to get a device connected to the PC.
I connected the phone to the PC with an original Samsung cable and Samsung Switch was not showing anything until I entered the Download Mode on my phone by pressing Volume Down + Home + On/Off.
Then Samsung Switch displayed that the connected device was not compatible (even though it meets all requirements).
I went to the device manager to make sure that the drivers are working and the phone indeed was showing up in the list. It also disappeared properly when I unplugged it from the PC.
After that I again tryed out to boot the phone several times. It would always freeze up anywhere within that Samsung animation.
Not knowing what to do I thought an factory reset might help out and I pressed Volume Up + Home + On/Off for several seconds when the phone was turned off.
Nothing happened. I could only boot up the phone by pressing the On/Off button alone and by doing that it always froze up. Just the Download-Mode was accessable (Volume Down + Home + On/Off).
Since I had no way to recover or reset anything by using Samsung Switch or the Recovery Mode I decided to flash an official Samsung rom on the device using ODIN.
I downloaded the following:
Odin ( v3.12.3 )
Firmware ( G925FXXU5EQK8_G925FDBT5EQK1_G925FXXU5EQKF_HOME.tar.md5 // from a german android forum, information below )
FIRMWARE INFORMATION
Model: SM-G925F
Model name: Galaxy S6 edge
Country: Germany (DBT)
Version: Android 7.0
Changelist: 10958180
Build date: Thu, 09 Nov 2017 10:08:50
Android security patch level: 2017-11-01
Product code: DBT
PDA: G925FXXU5EQK8
CSC: G925FDBT5EQK1
When I connected the phone Odin was recognizing the device and I was able to flash the firmware successfully. Odin did not display any kind of errors.
After the flash the phone was still connected to the PC since I feared it would run out of power. I know that the first boot after a flash can take a while. Since the LED was flashing while the big "Samsung Galaxy S6 Edge" logo was displayed I thought it was doing something in the background. I kept it like this (big logo, LED flashing, plugged into the PC) for over an hour and nothing did change. The device was warm but I doubted that it's doing anything since one hour for a boot, even after flashing, is way too long.
After that hour I turned it off and it instantly started to boot up again, but this time and all the other times after that it kept getting stuck at the big logo. It did not proceed into the animation like before.
I tested if I could enter the Recovery Mode at this point but it still was only able to get into the Download Mode.
The only way to stop it from trying to boot now was to get into that Download Mode, else it would just keep looping around, but not turn off by its own.
Every now and then, instead of displaying the big logo, it showed a blue screen with a yellow warning sign and the android mascot laying on the ground with "No command" beneath it. If you want to see how it looks you can google images "android 7.0 no command" and look for the full blue screen pictures.
Googling this blue screen with no command said that it can be easily fixed by wiping the data/cache from your device. But as I said the recovery mode was not showing up when I pressed the buttons for it. So a friend of mine suggested using ADB or fastboot to wipe the cache / dalvik cache.
Using both (ADB + fastboot) the device was not detected. We made sure that the drivers were installed properly. There was and there still is no way to connect to the phone with these both tools. Sadly.
After the first try of using ADB/fastboot we decided that the issue might have been the firmware I downloaded in the beginning and we used SamFirm (v0.3.6) to download the newest firmware for my SM-G925F ( G925FXXU5EQK8_G925FDBT5EQK1_G925FXXU5EQKF_HOME.tar.md5 )
This firmware appears to be the same as the one I downloaded before, but this one was slightly bigger.
This is a paste of the SamFirm window:
Checking firmware for SM-G925F/DBT/G925FXXU5EQK8/G925FDBT5EQK1/G925FXXU5EQKF/G925FXXU5EQK8
Model: SM-G925F
Version: G925FXXU5EQK8/G925FDBT5EQK1/G925FXXU5EQKF/G925FXXU5EQK8
OS: Nougat(Android 7.0)
Filename: SM-G925F_1_20171129140113_g7auy18e0c.zip.enc4
Size: 1950442496 bytes
LogicValue: 8ikzg48ul7hryauq
The flash was again successfull and still the same problem remained: no full boot.... sometimes a blue no command mascot.
After that we flashed again but with another PIT file attached. At first we got an error after the hidden.img but after changing the PIT file to this one ( ZEROLTE_EUR_OPEN_HIDDEN300M ) it worked again without any errors displayed by Odin. Apparently the PIT file we used at first did not have enough space for our hidden.img ...
We flashed that firmware several times and sometimes after the flash there would be a blue screen with an android mascot saying it is erasing, but the animation of that mascot freezes also after 10 to 20 seconds. I've kept the phone in this blue screen for several hours (up to 5h I think) since a few forum threads said that it sometimes takes very long to work and the LED was actually flashing all the time, but nothing changed.
We did not try to flash anything else because the Reactivation Lock is enabled and I have no idea how to turn this thing off w/o booting the device.
I would not mind flashing a custom firmware on the device as long as it just works again. So if this is somehow possible and might be a solution I am up for it.
What currenctly is going on with the phone:
· It only turns completly off when the power runs out.
· No button combination is working to turn it off.
· I can enter Download Mode easily but I can not enter the Factory Reset Mode.
Within the Download Mode it says:
ODIN MODE
Product Name: SM-G925F
Current Binary: Samsung Official
System Status: Official
Reactivation Lock: On
Secure Download: Enabled
KNOX Warranty Void: 0 (0x0000)
RP SWREV: B:5 K:2 S:2
· The boot ends either up with showing an "Samsung Galaxy S6 Edge powered by Android" logo for the whole time (kept it like that for several hours, no boot)
· or with a blue screen (yellow warning sign, android mascot laying on the ground and a "no command" beneath it).
· Odin is recognizing it as a device.
· The device manager is recognizing the device.
· Samsung Switch is saying the device is not compatible.
· ADB/fastboot can not detect the device.
So ... is it possible to get this damn thing to work again or is it gone for good?
If you still got any questions regarding the current state of the phone please ask. I will try to reply ASAP.
Thank you very much for any reply you guys might throw at me.
Click to expand...
Click to collapse
If your not bothered about tripping knox (0x1) and voiding your warranty you can flash twrp recovery. Then wipe from there or flash a custom ROM. This way we can know for sure if it's software or hardware issue.
callumbr1 said:
If your not bothered about tripping knox (0x1) and voiding your warranty you can flash twrp recovery. Then wipe from there or flash a custom ROM. This way we can know for sure if it's software or hardware issue.
Click to expand...
Click to collapse
Thanks for that reply.
Sadly I can not flash twrp recovery because of that Reactivation Lock ... and I do not know how to deactivate it at the current state of the phone
Is there a way to workaround that lock?
same here lol. but even twrp recovery cannot run LOl, sammy charged me as U$$ 700 to repair,
of course i did not let them repair, and now i have a dead phone, that only goes to download mode, and the bootlogo with glitches
What if you get a stock ROM and flash it via Odin, if your phone goes to Download Mode...? I didnt totally understand your situation but that came to my mind, flashing stock firmware via Odin.
EDIT: Just went through your SITUATION a bit, you should get it inspected by someone and then decide, otherwise you might lose your phone permanently.
Same here
Same here.... But with s6....
Only download mode. Not even a bootlogo. No recovery... Tried flashing literally everything. is it possible to flash a custom Rom with Odin? Convert a rom.zip t a tar file? I tried flashing cf-root but I don't know if it's rooted...

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