Samsung Galaxy J7 (sm-j700f) Stuck on boot - General Questions and Answers

Tried flashing latest stock firmware using odin. It says 'PASS' but phone still stucked on boot image. Cant even get to stock recovery mood but download mood is working fine.
How to fix this??

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Galaxy Tab P6200 Stuck on Bootloop

My Galaxy Tab P6200 always stuck on bootloop mode after installation of CM9 ICS ROM. I update this via odin & its getting pass from odin. But while I try to wipedata/factory reset from recovery mode it cannot perform, after sometimes it automatically rebooted & stuck on bootloop page. Though download mode & recovery mode is available & Stock ICS & HC ROM installation success via odin, my device cannot boot successfully. I will try several times with diffrent stock ROM but cannot success.
NB: Stock pit not work, I found a patched pit for p6200 which works. with stock pit update always stuck on factoryfs.img
I want urgent help, please help me if you have any solution. sorry for my bad english & advance thanks for your help.
ive been having trouble with my P6200 too... the thing is that i flashed a ICS rom that actually worked but made some other tweaks to made the tab having errors... now ive been having this boot loop at the samsung galaxy logo and wont proceed... im still able to use the stock recovery & download mode is still working fine but somehow i could not make it work again...
i need help for my device...
thanx
I'm having a bootloop problem also
I flashed stock 4.1.2 jb! I first wipe/format everything using 6.0.2.7 CWM flashed stock jb 3 times already pass on all of them three.. but it seems to be still in a bootloop. It passes samsung logo then goes black no sign of the second blue logo that comes out.. When I flash CWM it flashes but the stock jb rom doesn't work..

[Q] Galaxy S i9000 stuck at boot screen

Hi all, my galaxy s wont go past the boot screen. I am rooted with cf-root and I flashed a custom rom (miui) with Rom Manager. Then I wanted to go back to previous rom so i flashed CWM recovery backup and when it was finished it just froze on startup screen. I can still boot into recovery mode and download mode but when i boot to recovery mode is says "E:unknown volume for path". and now I also tried to flash stock gingerbread firmware with odin 1.85 but keeps failing.
Please help, dont know what else to do
Update
marius.jd said:
Hi all, my galaxy s wont go past the boot screen. I am rooted with cf-root and I flashed a custom rom (miui) with Rom Manager. Then I wanted to go back to previous rom so i flashed CWM recovery backup and when it was finished it just froze on startup screen. I can still boot into recovery mode and download mode but when i boot to recovery mode is says "E:unknown volume for path". and now I also tried to flash stock gingerbread firmware with odin 1.85 but keeps failing.
Please help, dont know what else to do
Click to expand...
Click to collapse
Ok so now its worse. after I tried to flash firmware with odin, it just shows a picture with cellphone and pc and I cant boot into recovery and if i connect it to the pc when in download mode it says "USB device not recognized".
do not switch your phone when that logo show up on your screen,but try to reconnect your cable without swith off your phone and flash stock firmware with odin
Sent from my GT-S5360 using xda app-developers app

Galaxy J7 will not accept any custom recovery!

I recently got the galaxy J7 and I have been trying to install a custom recovery using odin, yet any recovery i have used does not seem to work. I have tried using all TWRP imges for the J7 and none worked. It either gets completely stuck during boot, or while booting into recovery, it restarts the boot and just starts the phone normally. After the phone starts if i try to go to my recovery it just boots into stock recovery.

Odin flash succeeds without error but device is not changed.

I have a Samsung Galaxy S Duos GT-S7562 which stopped working with no warning a few months ago. The device has stock Samsung firmware and has never been rooted.
On power-up the device hangs on the Samsung logo.
When a charger is attached the battery charge animation is frozen.
Both stock recovery and download mode are working.
Attempted a factory reset and clear cache through recovery mode. Both showed as successful. Still hangs at Samsung logo.
Attempted to flash official Samsung stock firmware through Odin3. Flash succeeds with no error but restart still hangs at Samsung logo.
Attempted to flash TWRP recovery through Odin3. Flash succeeds with no error but recovery mode still comes up as stock rather than custom.
Why would Odin3 report a successful TWRP recovery flash but the device still boots the stock recovery? I have another identical S7562 that I successfully flashed the same TWRP recovery and Samsung stock firmware using the same setup, Odin3, PC and USB cable. Both are unlocked devices. Disabling auto-restart in Odin3 and attempting to boot straight to recovery after flashing doesn't help.
I suspect that a JTAG recovery may be my only option but from what I've read it should only be attempted if stock recovery and download mode are *not* working. In my case both appear to be working. Would a JTAG recovery help in this case?
Could there be some sort of NAND memory failure that does not result in any error messages during an Odin3 flash?
Thank you for any help!
I guess JTAG is the only way. Sorry.

Help! Galaxy S8+ On loop after flashing stock firmware

firstly, I flashed custom rom and twrp however after a month or so while using the mob it just switched off and started boot loop, therefore I flashed stock firmware to get it back as it was bought for the first time.
after flashing form Odin, it says “installing system firmware - 32%” and then shows “erasing” after a few min and then it reboots but gets stuck at boot logo “ Samsung galaxy s8+ powered by android”, nothing works, I’ve tried flashing again and same happens, doesn’t boot to recovery aswell…. Any help ?? Thanks

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