Need help flashing SM-T550 Official firmware - Samsung Galaxy Tab A series Questions & Answers

The device just won't boot up, it gets stuck on the "Samsung" logo and that's it.
I tried performing a factory reset, but nothing changed: When I boot, I can read "Set Warranty Bit : kernel"
I 'm looking for a tuto on how to flash a factory ROM for it, but can't find any thread without dead links. Can anyone point me in the right direction?
Thanks!

https://www.sammobile.com/firmwares/galaxy-tab-a/SM-T550/XAR/download/T550XXU1BPK1/111484/
Assume your tablet is from US, instruction is on the download page. Normally, only 3 files to load : BL ( Bootloader ), AP ( Rom), CSC ( Customer Software Customization ).
Most people just load the AP file only, in your case don't skip the BL file. Your error message may be the result from rooting.

Related

[Q] i9505 Soft Brick Help - Stuck on Samsung logo (Rooted)

Okay first post on this website.
4.4.2, i9505
So, as i am a compete android n00b, i rooted my s4 with the KingoRoot tool as i thought it was an easy method, later i found out ChainFire made an easy auto root .
After i rooted with the kingo my device would randomly reboot, when i called someone, when i locked my phone and random stages throughout the day.
After some reading online i found the solution was to re-flash my phone to stock fireware. so i downloaded odin, drivers, fireware from sam and tried to re-flash it. however my phone failed after aboot.mbn. I then got the unexpected error saying the phone had to be plugged into kies etc.
I then used "philz_touch_6.07.9-i9300.tar.md5" to get rid of the error message which worked. however the phone still would radnomly restart.
Again i turnrf to the web to find a solution for the radnom booting and found this -
http://forum.xda-developers.com/showthread.php?t=2514703
telling me to delete everythinhg knox basically. after deleting everything outlined my phone is now stuck on the samsung logo.
i cannot access recovery mode! however can access download mode. but i have tried multiple times to re-flash to stock firmware to no avail...
Help, please
Recap
- Stuck on samsung logo
- Cant access recovery mode
- Can access download mode
- Deleted everything knox as specified
Thanks, Dylan
1. The error that give u ODIN is coz you are trying to flash an older firmware that the one you have installed in your device.
2. You have to flash a STOCK recovery. Flash this file via ODIN in PDA/AP (like in the pic 1 attached): HERE.
3. Turn off your device manually when the process finish. Boot it into STOCK RECOVERY by pressing and holding Volume Up, Home and Power.
4. Take a look the CSC (pic 2). "Applied the CSC-code: ............" <- This is your REAL CSC. Turn off your device again manually and boot it into DOWNLOAD MODE by pressing and holding Volume Down, Home and Power.
5. Go to Sammobile and download the LATEST firmware for your device with correct CSC and flash it via ODIN.
6. About KNOX and reboots: Delete all KNOX reminds less "Lib = libknox_encryption.so".
7. Good luck

Custom binary blocked while flashing combination file

So I have a S8 (SM-G950FD Brazilian unlocked) and it freaked out while updating to the latest firmware. It boots to a screen saying "codification failed" (I translated, it may not say that in an English configured device) and asks for a factory reset wich does nothing. I tried flashing the latest firmware with Odin and nothing.
So while researching I came across combination files, so I downloaded the one for the right binary (5) but it spits out the error "custom binary blocked by frp lock" when flashing with Odin and now I'm stuck.
I would post photos with all the device information in both recovery and download mode with the hope it may show something I don't see but unfortunately, I'm a new user and therefore not able to.

A5 2016: Can not repair/flash firmware because of FRP LOCK

Hi community,
I tried to flash TWRP and LOS via Odin, but anytime it failed in download mode. On the download screen was a message blocked by "FRP Lock" . I read anywhere this FRP is to avoid that e.g. stolen phone can be flashed - just owner can do. So i did a factory reset (so removed my personal "connection" to the phone) and it worked . I flashed TWRP, flashed LOS 16 - super ! All worked fine - no problems.
BUT after I switched of the phone and I wanted to switch on the phone again it stopped in bootloader (or first black screen) with message "Custom binary blocked by FRP". I was not able to start into TWRP (power+home+volume up), just into download mode. So I tried to flash again TWRP -> blocked by FRP! But now I could not do as in very first beginning a factory reset to avoid FRP block, because phone didn't boot.
I downloaded original firmware latest version (german unbranded version - its a german unbranded phone), but flashing in Odin works only in BL, AP, CSC, but in CP it failed (I tried first all, and then step by step). So phone does not boot. It has boot loop with samsung logo.
Because it seemed that in each status the phone does not charged I opened phone and removed battery to avoid that I can't test anything because of empty battery. I don't have any idea what to do now. Is my phone bricked or is there a chance to switch of FRP if I am not able to boot the phone normally?
Regards Odiad
SOLVED: I found a good explanation in a german Forum, and in addition (one of my problems) I could get SamFirm to run (I had trouble with MS C++ 2008), so with new/other ROM I was able to flash without problems and now mobile works fine again...
Regards Odiad

Bricked S7 Edge?

Recently, I turned off developer options in my rooted S7 Edge (SM-G935FD). Idk if that is the cause, but after rebooting I got the error "Custom Binary Blocked by FRP Lock". I couldnt boot into my recovery (TWRP) either. I was running on Oreo btw. I watched some Youtube guides and apparently the solution was to flash stock rom. So... I flashed an Oreo Stock Rom on my phone via Odin. I thought that would solve my problem, but instead it made it worse. It didnt give me the Custom Binary Blocked by FRP lock error but my boot screen is stuck at the boot animation (not a bootloop). I could boot into the stock recovery tho. I tried a factory reset, that didnt make things better. I could also boot into download mode. I thought I made a mistake, so I flashed like 5-8 times with both CSC an Home_CSC. The result was the same, it would get stuck at the boot animation. I tried flashing TWRP via Odin too, but it said "Custom Binary (Recovery) blocked by FRP Lock". I tried sideloading that TWRP file to my device via ADB. It gave me an error too (I think "Cannot flash from external devices" or something like that) I thought flashing with Re-partition and Nand Erase On would solve my problem, so I tried that, but it didnt work. Im running on Binary 3 apparently. Is there anything I can do?
Rapidfayaround said:
Recently, I turned off developer options in my rooted S7 Edge (SM-G935FD). Idk if that is the cause, but after rebooting I got the error "Custom Binary Blocked by FRP Lock". I couldnt boot into my recovery (TWRP) either. I was running on Oreo btw. I watched some Youtube guides and apparently the solution was to flash stock rom. So... I flashed an Oreo Stock Rom on my phone via Odin. I thought that would solve my problem, but instead it made it worse. It didnt give me the Custom Binary Blocked by FRP lock error but my boot screen is stuck at the boot animation (not a bootloop). I could boot into the stock recovery tho. I tried a factory reset, that didnt make things better. I could also boot into download mode. I thought I made a mistake, so I flashed like 5-8 times with both CSC an Home_CSC. The result was the same, it would get stuck at the boot animation. I tried flashing TWRP via Odin too, but it said "Custom Binary (Recovery) blocked by FRP Lock". I tried sideloading that TWRP file to my device via ADB. It gave me an error too (I think "Cannot flash from external devices" or something like that) I thought flashing with Re-partition and Nand Erase On would solve my problem, so I tried that, but it didnt work. Im running on Binary 3 apparently. Is there anything I can do?
Click to expand...
Click to collapse
I still have the "FRP Lock: On" on download mode, so I tried bypassing FRP lock via binary 5 combination firmware and flashing a binary 7 stock firmware. This time, it doesnt get stuck at the boot animation, instead it redirects to a screen with an android face saying "Installing System updates". A few seconds later, it says "No command" with a dead android face. Then it reboots and the same thing happens. Basically a boot loop, but in a different way. I cant seem to boot to stock recovery either. The worst thing is that I cant even turn off the thing. I have to leave it loop for the entire day until its battery dies
Rapidfayaround said:
I still have the "FRP Lock: On" on download mode, so I tried bypassing FRP lock via binary 5 combination firmware and flashing a binary 7 stock firmware. This time, it doesnt get stuck at the boot animation, instead it redirects to a screen with an android face saying "Installing System updates". A few seconds later, it says "No command" with a dead android face. Then it reboots and the same thing happens. Basically a boot loop, but in a different way. I cant seem to boot to stock recovery either. The worst thing is that I cant even turn off the thing. I have to leave it loop for the entire day until its battery dies
Click to expand...
Click to collapse
after flashing the combination firmware, flash the stock firmware and go thru the boot process
Youdoofus said:
after flashing the combination firmware, flash the stock firmware and go thru the boot process
Click to expand...
Click to collapse
That is what I literally did. I flashed a combination firmware, factory rested my entire phone, turned on developer options as well as allow usb debugging, attempted to reset FRP via Z3X Samsung Tool Pro and finally flashed a stock rom. And, the result is this. A bootloop with an android face dying. I did manage to enter a different screen by pressing volume up once along with pressing volume down and power button. It said "could not open recovery_because_no file directory" and had some more errors. The thing is....I made it worse at the first place. I could have flashed a room with binary 6 or lower, cuz at least the combination firmware would have been available to flash, but my stupid brain did not think of that. I flashed a binary 7 stock rom and there is no combination firmware with a binary of 7 or more. Which means, I will most likely get the "SW check fail Device: 7 Binary: 6 " error while flashing.
Rapidfayaround said:
That is what I literally did. I flashed a combination firmware, factory rested my entire phone, turned on developer options as well as allow usb debugging, attempted to reset FRP via Z3X Samsung Tool Pro and finally flashed a stock rom. And, the result is this. A bootloop with an android face dying. I did manage to enter a different screen by pressing volume up once along with pressing volume down and power button. It said "could not open recovery_because_no file directory" and had some more errors. The thing is....I made it worse at the first place. I could have flashed a room with binary 6 or lower, cuz at least the combination firmware would have been available to flash, but my stupid brain did not think of that. I flashed a binary 7 stock rom and there is no combination firmware with a binary of 7 or more. Which means, I will most likely get the "SW check fail Device: 7 Binary: 6 " error while flashing.
Click to expand...
Click to collapse
If the device is still entering download mode, install the recent version of stock for your device. Maybe that will solve your problem.
Rapidfayaround said:
That is what I literally did. I flashed a combination firmware, factory rested my entire phone, turned on developer options as well as allow usb debugging, attempted to reset FRP via Z3X Samsung Tool Pro and finally flashed a stock rom. And, the result is this. A bootloop with an android face dying. I did manage to enter a different screen by pressing volume up once along with pressing volume down and power button. It said "could not open recovery_because_no file directory" and had some more errors. The thing is....I made it worse at the first place. I could have flashed a room with binary 6 or lower, cuz at least the combination firmware would have been available to flash, but my stupid brain did not think of that. I flashed a binary 7 stock rom and there is no combination firmware with a binary of 7 or more. Which means, I will most likely get the "SW check fail Device: 7 Binary: 6 " error while flashing.
Click to expand...
Click to collapse
the "no such file or directory" error is due to either having had removed stock recovery in flashing the firmwares or the factory recovery corrupted due to likely the same reason. Just flash a revision 7 firmware for your phone and it will at least boot
Dark Stranger said:
If the device is still entering download mode, install the recent version of stock for your device. Maybe that will solve your problem.
Click to expand...
Click to collapse
^^^ this ^^^
Dark Stranger said:
If the device is still entering download mode, install the recent version of stock for your device. Maybe that will solve your problem.
Click to expand...
Click to collapse
I have literally flashed the latest stock rom for my device and my country which is G935FXXS7ESK8.
I am a bit confused tho...I am not sure if my device is SM-G935FD or SM-G935F. The download mode says SM-G935F...but this phone used to work with a SM-G935FD rom back in the days. Is this causing the problem most likely? And btw the repair shop said they cant fix it too
Rapidfayaround said:
I have literally flashed the latest stock rom for my device and my country which is G935FXXS7ESK8.
I am a bit confused tho...I am not sure if my device is SM-G935FD or SM-G935F. The download mode says SM-G935F...but this phone used to work with a SM-G935FD rom back in the days. Is this causing the problem most likely? And btw the repair shop said they cant fix it too
Click to expand...
Click to collapse
I am somehow relieved to know that someone else on this planet is on the same (EXACT) boat as me....this is what we get for messing around too much with our phone hum?
1 - After booting up my phone I get the blue background with a dead Android and "No Command" message
2 - I tried accessing recovery by pressing Power+Home+VolumeUp, but all I get is a black screen with a wall of code lines with "fail to open recovery_cause(No such file or directory)" at the beggining of the text.
3 - "No problem! I'll just flash TWRP with ODIN and install a custom ROM and be done with it!".
..NOPE! FRP(factory reset protection) is ON!!! I cannot install TWRP
4- I've tried to find a combination file with binary version 7...but looks like the internet doesn't seem to care about the good ol' number 7...All I can find is binary version 6.
What Im trying to do now is creating my own combination file binary version 7 (if that's even a thing...) from a stock firmware. But I'm not getting any luckier down this path.
Looks like we need a hero...:crying:
PseudoNoob said:
I am somehow relieved to know that someone else on this planet is on the same (EXACT) boat as me....this is what we get for messing around too much with our phone hum?
1 - After booting up my phone I get the blue background with a dead Android and "No Command" message
2 - I tried accessing recovery by pressing Power+Home+VolumeUp, but all I get is a black screen with a wall of code lines with "fail to open recovery_cause(No such file or directory)" at the beggining of the text.
3 - "No problem! I'll just flash TWRP with ODIN and install a custom ROM and be done with it!".
..NOPE! FRP(factory reset protection) is ON!!! I cannot install TWRP
4- I've tried to find a combination file with binary version 7...but looks like the internet doesn't seem to care about the good ol' number 7...All I can find is binary version 6.
What Im trying to do now is creating my own combination file binary version 7 (if that's even a thing...) from a stock firmware. But I'm not getting any luckier down this path.
Looks like we need a hero...:crying:
Click to expand...
Click to collapse
OMGGGGGGGG....Looks like I am not the only one. DAMN. Bro...tell me if you find a solution ok? Hopefully there is a way to solve this problem...there has to be one. And share your combination firmware after you finish it. Thank you very much
Rapidfayaround said:
OMGGGGGGGG....Looks like I am not the only one. DAMN. Bro...tell me if you find a solution ok? Hopefully there is a way to solve this problem...there has to be one. And share your combination firmware after you finish it. Thank you very much
Click to expand...
Click to collapse
No luck over here friend...
Desperate times require desperate measures. Have you ever tried flashing combination files from different S7 Edge versions?
I can find files for the G935A with a revision 7 of the binary...Im thinking flashing it into my G935F and see what happens. I've read the risks associated with installing firmwares from other phone versions, but I'll have a paperweight either way.
I'll keep this thread updated.
Rapidfayaround said:
I have literally flashed the latest stock rom for my device and my country which is G935FXXS7ESK8.
I am a bit confused tho...I am not sure if my device is SM-G935FD or SM-G935F. The download mode says SM-G935F...but this phone used to work with a SM-G935FD rom back in the days. Is this causing the problem most likely? And btw the repair shop said they cant fix it too
Click to expand...
Click to collapse
Doesn't really matter if you have a F or FD. I'd say you flash the latest stock rom for G935F or FD(which ever is latest) for any country regardless. By this you should be able to boot and won't get any odin errors.
UsmaniMustafa said:
Doesn't really matter if you have a F or FD. I'd say you flash the latest stock rom for G935F or FD(which ever is latest) for any country regardless. By this you should be able to boot and won't get any odin errors.
Click to expand...
Click to collapse
Can you provide me the link plz.
Turns out, its a hardware problem with the storage. Replacing the motherboard might be the solution I think. :/
I had solved my phone last day
At first u can flash ur phone to leatest stock rom. Then u have to turn of frp lock. Then u will able to boot up your phone. If u cant fix u can knock me on facebook. (If u r a z3x user). Bcoz u need z3x for bypass frp with ufs cable.
Im also using s7 edge.
hazratboss said:
At first u can flash ur phone to leatest stock rom. Then u have to turn of frp lock. Then u will able to boot up your phone. If u cant fix u can knock me on facebook. (If u r a z3x user). Bcoz u need z3x for bypass frp with ufs cable.
Im also using s7 edge.
Click to expand...
Click to collapse
Oh ok I will contact you
hazratboss said:
At first u can flash ur phone to leatest stock rom. Then u have to turn of frp lock. Then u will able to boot up your phone. If u cant fix u can knock me on facebook. (If u r a z3x user). Bcoz u need z3x for bypass frp with ufs cable.
Im also using s7 edge.
Click to expand...
Click to collapse
Does it matter if I use the cracked version without box. And no, I dont have the ufs cable. Is there anything else I can do?
Hi guys, I have the exact same problem with my S7 edge from T-mobile (g935t). Odin will only accept for flash the latest rom and after flash it reboots but I get BSOD. I tried a pit file also from an old g935T rom which was android 6.0 and I managed to get into recovery for a moment and I did a factory reset/wipe cache but after reboot entered again in a black screen and the blue led was lit. I finally removed the battery to turn the phone off. I can still enter download mode but is there anything else I can do to resurrect the phone?
Samsung s7 edge (g935f)
Hi everyone , please am having issue of NO COMMAND and i cant boot into recovery. My oem is on so i cant install twpr neither. Am on binary u8. Please any solution to recover my phone?
Very very good new guys...yep you guessed it right. I was able to fix this problem.
How you may ask? Follow these steps
Note: Make sure you have enough battery. Lack of battery charge in my case caused alot of problems.
1. Download a U7 Rom for your SM-G935F or SM-G935FD
2. Extract the Rom as well as the AP
3. After you extract the AP, you will be greeted with boot.lz4.img , recovery.lz4.img , system.lz4.img & meta-data
4. Make a backup of recovery.lz4.img and meta-data just in case. Also, make a copy of boot.lz4.img and rename the copied one to recovery.lz4.img. Don't forget to delete the original recovery and meta-data
5. Now, you should be left with boot.lz4.img , (modified) recovery.lz4.img and system.lz4.img.
6. Now, download this https://www.mediafire.com/file/ah20ha869prdkkc/Autotar2.0_By_FixFirmwares.com.rar/file
7. Now, make a .md5 file that contains (modified) recovery.lz4.img and system.lz4.img
8. After you are done making that .md5, flash it along with CSC, CP and BL.
9. You should directly boot into your device, (if you do), charge your phone for a while if the battery is lower than 20%.
10. Then, go to the settings and enable OEM Unlock before doing ANYTHING
11. Then, reboot to download mode and flash TWRP
12. Download the no-verity-encryption.zip
https://zackptg5.com/android.php#disverfe
13. Allow system modifications and format data (NOT WIPE)
14. If that doesn't work, go to TWRP, connect it to your PC and copy the no-verity-encryption.zip file and install it
15. If that still doesn't work then, follow this tutorial
https://www.google.com/amp/s/forum....niversal-dm-verity-forceencrypt-t3817389/amp/
16. Then, you should boot and yea...enjoy ?
If this method doesn't work then, you need to try different combinations.
Try packing these files in AP
1. Boot.lz4.img, (Modified) Recovery.lz4.img & system.lz4.img
2. (Modified) Recovery.lz4.img & system.lz4.img
3. Meta-data, Boot.lz4.img, (Modified) Recovery.lz4.img & system.lz4.img
If that doesn't work, I'm sorry this is how I fixed it. ?*
For anyone wondering how I fixed it well, firstly a HUGE THANKS TO @shah22 & @Tapas27sTapas2. This would have been LITERALLY IMPOSSIBLE WITHOUT THEM. So, basically I tried an AP with renamed recovery.lz4.img and system.lz4.img only along with CP, CSC and BL. Due to my phone having literally 0%, this journey was very difficult.
Feel free to ask any question
Very very good new guys...yep you guessed it right. I was able to fix this problem.
How you may ask? Follow these steps
Note: Make sure you have enough battery. Lack of battery charge in my case caused alot of problems.
1. Download a U7 Rom for your SM-G935F or SM-G935FD
2. Extract the Rom as well as the AP
3. After you extract the AP, you will be greeted with boot.lz4.img , recovery.lz4.img , system.lz4.img & meta-data
4. Make a backup of recovery.lz4.img and meta-data just in case. Also, make a copy of boot.lz4.img and rename the copied one to recovery.lz4.img. Don't forget to delete the original recovery and meta-data
5. Now, you should be left with boot.lz4.img , (modified) recovery.lz4.img and system.lz4.img.
6. Now, download this https://www.mediafire.com/file/ah20ha869prdkkc/Autotar2.0_By_FixFirmwares.com.rar/file
7. Now, make a .md5 file that contains (modified) recovery.lz4.img and system.lz4.img
8. After you are done making that .md5, flash it along with CSC, CP and BL.
9. You should directly boot into your device, (if you do), charge your phone for a while if the battery is lower than 20%.
10. Then, go to the settings and enable OEM Unlock before doing ANYTHING
11. Then, reboot to download mode and flash TWRP
12. Download the no-verity-encryption.zip
https://zackptg5.com/android.php#disverfe
13. Allow system modifications and format data (NOT WIPE)
14. If that doesn't work, go to TWRP, connect it to your PC and copy the no-verity-encryption.zip file and install it
15. If that still doesn't work then, follow this tutorial
https://www.google.com/amp/s/forum....niversal-dm-verity-forceencrypt-t3817389/amp/
16. Then, you should boot and yea...enjoy ?
If this method doesn't work then, you need to try different combinations.
Try packing these files in AP
1. Boot.lz4.img, (Modified) Recovery.lz4.img & system.lz4.img
2. (Modified) Recovery.lz4.img & system.lz4.img
3. Meta-data, Boot.lz4.img, (Modified) Recovery.lz4.img & system.lz4.img
If that doesn't work, I'm sorry this is how I fixed it. ?*
For anyone wondering how I fixed it well, firstly a HUGE THANKS TO @shah22 & @Tapas27s. This would have been LITERALLY IMPOSSIBLE WITHOUT THEM. So, basically I tried an AP with renamed recovery.lz4.img and system.lz4.img only along with CP, CSC and BL. Due to my phone having literally 0%, this journey was very difficult.
Feel free to ask any question

hard bricked sm-377w while trying to remove frp

hi all my grandson cannot remember his login info for his tablet, so i went and followed the instructions below I got to step 5 and could not get it to download recovery or turn it on.
After flashing the combo file there was a screen said factory binary but it would not load past that so i followed the steps and did a factory recover. the samsung logo came on but again it just went on to the factory binary screen. so i turn it off but would not turn back on. What can I do I have been out of the scene for a bit, I remember with the note 3 and 4 you could use a download jig to force it to download mode. I tried that but nothing happens. Any help would be greatly appriciated.
I have successfully Unlocked my SM-T377W from Rogers Canada on 7.1.1
I have been Struggling for a while to Unlock the FRP from this device and finally done it
Now its unlocked and I can use whatever sim card i want also
Successfully Unlocked FRP of my SM-T377W from Rogers Canada on 7.1.1
I have successfully Unlocked my SM-T377W from Rogers Canada on 7.1.1 I have been Struggling for a while to Unlock the FRP from this device and finally done it Now its unlocked and I can use whatever sim card i want also So I have used these 2...
forum.xda-developers.com
So I have used these 2 files [IT IS IMPORTANT TO USE THE CORRECT COMBINATION AND CORRESPONDING STOCK], maybe you can use the same ones I have used if you do not have a choice
1- Combination "COMBINATION_OYA_FA60_T377WVLU3ARG1"
2- Stock ROM "Firmware SM-T377W T377WVLU3BRG4 [7.1.1]"
So what I have basically done,
1- Turn the device off and put the device in DOWNLOAD MODE
2- Flash the Combination Firmware to your device with Odin
3- When the device restarts and it runs the Combination firmware, turn it off again and put it in "RECOVERY MODE" not download, and in "RECOVERY MODE" do factory reset wipe and click yes then It will restart or maybe shut off
4- Turn it on again normally and it will run the Combination firmware
5- Now Turn it off again and put in "DOWNLOAD MODE" this time
6- From the Stock ROM extract the 3 files (boot, sboot and system) from inside the files of the stock ROM, you will find them inside "AP" and "BL" (cause we have BL, AP, CP, CSC), you need to use 7-zip so you can extract whats inside them
7- Create new file/archive (it will be .tar) using 7-zip with these 3 files (boot, sboot and system)
9- Flash the new file you made .tar (that has the 3 files) in the AP section in Odin.
10- Your done

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