Database Users

G900F screen doesn't turn on after update

Hi,
After a LineageOS update, my Samsung S5 (G900F) was working and suddenly shouted down. I tried to restart it but it was booting in loop (always without passing through the first Samsung Galaxy S5 logo). As I wasn't being able to restart it I tried to fix it by installing the stock rom through Odin. It installed successfully and the phone rebooted with images in the screen. If I touch the phone I can hear the touch working and volume also works but I don't have image, not even while booting the phone.
Now, the only way I have to see image (in the download mode only) is to take off the battery for a few minutes and then restart the phone while pressing the download mode buttons.
I tried several times to install the stock rom through odin but the same thing happens everytime so I am still without image.
Any suggestions?
Thank you. :good:

Samsung Galaxy Tab 4 reboot loop but without working recovery mode

Dear Galaxy tab experts!
I have read on several places in the Internet that some people has suffered
in a boot loop. The Internet recommends to do a hard reset via
the recovery mode. OK. Unfortunately, my device fails to enter the recovery mode.
My Samsung Galaxy tab 4 SM-T530 has been working fine for for about 2.5 years
until last weekend. Now it does not boot but stays in a reboot loop. That
means that The boot logo shows up for a while and disappears after
about 10 seconds.
I was searching the Internet and I wanted to try out the recovery mode
but I am not able to reach it. When I press Power + Volume Up + Home buttons,
the label "recovery booting ..." appears in the upper left corner of the
display for a while and thereafter, the boot loop continues.
Fortunately, I am able to shutdown my device by pressing
the Power + Volume Down buttons.
The tab has been used about 10 hours per week. I have never uploaded
any ROM or firmware.
The boot loop has started when I was charging my device. I used the
official Samsung USB charging connector as always. During the
charge process, I wanted to see the charge progress like I
have done it many times before but I only saw a grey battery and after that,
the boot loop has started.
I have no problem to do a hard reset and to wipe out my data.
My device contains no important personal data.
What do you recommend to get my device working again?
Thank you in advance!

Help!! phone is stuck in bootloop

Hi guys .. so i downloaded a custom theme from here ( dna aos-p black ) .and it worked however when i restarted my phone it was all messed up so i went to reapply it and then my phone restarted and now is stuck in boot loop.. it shows flashing Samsung logo and then optimizing apps and the turns off and repeats..
Phone is on android 8 with may security patch ... PLEASE HELP.. And thanks..

if memory serves you need to:
- while the phone is booting - once the Samsung logo starts appearing, press and hold "volume down + power button"
if it doesn't reboot then try playing around with your timing - when to start pressing both buttons.
if you get the timing right the phone should reboot into download mode form where you can flash the latest stock ROM
--
I've gotten myself into many a boot loop while flashing ROM's that didn't "sit well" with my SM-G9500.

Stuck in logo after flashing stock. Can't boot into recovery. PC doesn't recognize.

So, I rooted and tried flashing the stock ROM (from Sammobile, same country, same exact model [SM-G950F], I already had the stock ROM and had never flashed anything else to the phone other than root, June security update, my phone had July's) to see if I could fix a problem that couldn't be fixed with any other method I had tried.
Everything in Odin seemed to go well, I got the PASS green box at the end. But then the phone couldn't go pass the Samsung logo when booting up. I left it quite a few minutes, before trying to boot into recovery mode and wiping data. Only to realize that I couldn't boot into recovery mode. In fact, I can't even turn the phone off. No combination of hardware keys works other than power button + bixby + vol down, to get into download mode. But that's of no use, because when I plug my phone into my PC (with the same cable and port I used before to root and flash the firmware into it) it is not recognized by Odin or the PC.
It just has the Samsung logo flashing slowly over and over because I can't turn the device off. By the time the battery dies out I'll most likely have the logo burnt into the display.
I also haven't been able to find any help online. Everyone's suggestion is “boot into recovery and wipe data”, but I can't do that.
Is my phone gone for good?

Galaxy S8+ in bootloop without recovery and frp locked

Hi guys!
I've read tons of threads and guides on Google but nothing helped me to bring to life my Samsung Galaxy S8 Plus. After hours and hours of test and probes I surrender!
Basically I was using normally my phone and suddenly has power off and showing the Samsung Galaxy Logo continuously. I've force reboot it with vol down+pwr button and after some minutes restart normally again. After 5min again the boot loop and stuck there. Tried again to power it off but didn't work so I thought was the battery (because is 3yrs old with heavy use and months ago I had the screen flickering and a battery drain to zero). I opened the phone, unplug the battery and the power button (because I thought was the power button stucked as on my father phone). So after mounted all the stuff in their place I tried to boot it and suddenly start to work again! I've backup all my things rapidly but again power off by himself and this is the last time I see it working.
So I tried to empty the cache entering in the recovery but it was useless so the only way seems flashing the original FW with Odin. Downloaded the right one with Frija, upload the rights files in Odin (Home_csc because I don't want to lose my internal memory stuff) and the phone automatically reboots, pass the Samsung logo and go in Upgrading mode with the blue android screen and a % increasing. After that by himself power off and nothing happen.
I read some stuff about my possibilities to recover it without losing data but a lot of tutorial talk about entering in recovery but I cannot do it! Simply does not go in recovery with vol_up+bixby+pwr_button even after force shutdown it with vol_down+pwr_button or reattach the battery. The only thing I'm allowed to do is put it in Download Mode to be recognized by Odin.
I've tried to launch ADB devices but it is not visible in Download Mode.
I've tried to flash another firmware for the same model (theoretically my one is unbranded italian) but I tried with WIND one because in download mode there is a text "Carried_ID:WIND" but this FW Odin fail to upload it.
I've tried to flash the TWRP with Odin but fails on the phone with error "Custom binary(recovery) blocked by FRP Lock". I've searched how to unlock it but without have access to recovery or phone settings seems impossible. And this phone has also OEM Lock.
I've tried again to flash the FW but the only difference than before was the blue android robot with stucked text "Installing system update", "Erasing" , "yellow advice notice" and finally a green screen with "An error has occurred while updating the device software.Use the Emergency recovery function in the Smart Switch PC Software". And yes, I already tried with Smart Switch but the program does not detect the phone.
I've also tried to flash the original recovery but nothing change.
Seems that my devices is bricked or a kind of boot loop.
In my situation there is something that I can do to recover the internal memory data? I don't tried to flash the FW with CSC file because I don't want to erase all the data.
My Galaxy was original since the purchasing, no root or flashed a FW, only OTA updates.
I've attached a photo with the stuff that appear in Download mode.