Fastboot mode - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

I'm trying to enter fastboot mode on my s20+ (opened bootloader and twrp installed) by pushing volume up and power button simultaneously but phone boots into normal mode. How to enter fastboot mode?

altojd said:
I'm trying to enter fastboot mode on my s20+ (opened bootloader and twrp installed) by pushing volume up and power button simultaneously but phone boots into normal mode. How to enter fastboot mode?
Click to expand...
Click to collapse
You will only have fastboot on Samsung with custom rom and stock custom rom recovery. Like if using LOS you have to use LOS Recovery for fastboot to work. TWRP does not support fastboot mode on samsung. If still on Samsung firmware there is no fastboot it uses Odin.

Related

CWM / TWMP in boot loop

Hi all,
After I've installed color os 2.1.1 from sniper-joe I cannot back into my recovery.
The phone can boot on OS and in fastboot but not into recovery.
My phone still boot loop as long I press volume down. When I release the button I'm in fastboot.
Model x9006
I try to remove SD and SIM : same
I've installed different TWMP and CWM : same
I've got some issue with 2.1.1 and want to go back to 2.0.8 but cannot
Mine has too after installing the official Lollipop, any help? Lollipop was buggy for me so I'd like to unbrick my Oppo.
So plug in phone AFTER booting into Fastboot mode (power+volume up) then open a command window by pushing shift and right clicking anywhere that the platform-tools folder is and then type fastboot devices and hit enter and then type fastboot oem unlock and hit enter and then fastboot flash recovery recovery.img or whatever the name of your rcovery is then just power+volume down and boot into the recovery. It helped me!
droidiam said:
Mine has too after installing the official Lollipop, any help? Lollipop was buggy for me so I'd like to unbrick my Oppo.
So plug in phone AFTER booting into Fastboot mode (power+volume up) then open a command window by pushing shift and right clicking anywhere that the platform-tools folder is and then type fastboot devices and hit enter and then type fastboot oem unlock and hit enter and then fastboot flash recovery recovery.img or whatever the name of your rcovery is then just power+volume down and boot into the recovery. It helped me!
Click to expand...
Click to collapse
You need one of these recoveries if you own a R63419 LCD (newer find 7 have this model) - For me the first was OK :
forum.xda-developers.com
/find-7/find7-development/x9076-r63419-lcd-recoveries-t3049886

adb command to reboot erecovery

im stuck in a boot loop but can give a one or two commnds from adb for about 10 seconds befor it restarts from twrp i need a command to hopefully boot into erecovery please any help is duely noted or if i can maby flash a new recovery real quick in twrp from adb command
NO.
Since you said twrp recovery.. I assume bootloader is unlocked..
Boot into fastboot mode by holding volume down and power and connect to pc
Or
hold volume down key in power off mode and connect to pc and release until fastboot mode is loaded
Use
fastboot flash recovery_ramdisk ___ . Img to flash recovery if os is oreo
Replace ___ with the recovery file name
Fastboot flash recovery recovery. Ing to flash recovery if os is noughat

[SOLVED] TWRP Recovery Boot Fails After Successful Flash - why?

Hey guys,
I downgraded my D5503, rooted, unlocked the bootloader and then I tried to install TWRP real recovery. Therefore I flashed in fastboot mode (blue led ON) the *.img file using the command fastboot flash recovery
*.img.
But it's impossible to start TWRP, ot with Power & Vol+, vibrate and release Power nor the command fastboot reboot whixch just restart the device into my rom
How can I start or check my TWRP recovery? I found a SOLUTION, you find it here
or long story short: After flashing twrp via fastboot flash recovery filename.img DO NOT BOOT INTO ROM!! YOU NEED TO BOOT INTO TWRP: Vol- & Power, wait for vibration & release Power but keep Vol- until TWRP starts up
- closed -

Realme 3 Recover from Soft brick/ boot loop [Guide]

Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
ADB Installer tool: https://forum.xda-developers.com/android/general/tool-adb-fastboot-installer-tool-windows-t3999445
Why when I download ozip I always get different md5 checksum? I tried different download manager and I always get different md5 checksum. Anyone has a mirror of any ozip file?
doesn't install stock recovery
When i install stock recovery and reboot to recovery it doesnt show anything and boot to system .That's why i cant install stock rom .i intsalled stock image too but get stuck on realme logo .But if i install twrp it works fine . Device rmx1825 . current rom:aosp gsi(buggy buggy buggy)
fawazahmed0 said:
Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
Click to expand...
Click to collapse
Please help !! My RMX1821 still cant boot to stock recovery after i flash the stock recovery.img. Please Helpp !!!
my device not booting into fastboot mode.. others is ok
phone is not going in to recovery mode
my device is in infinity boot loop mode. it was on everything stock mode.
right now i cant even boot into recovery mode or fastboot mode.
plz help me guys.
Problem regarding realme 3
Problem regarding realme 3 as my device is showing error of charging overtime and telling to contact realme. It happened when I relocked the bootloader, as I unlocked my bootloader yesterday and today I tried to root it using magisk_patched.img file and it showed error and therefore I relocked my bootloader and after that it showed the problem. And I added the ozip file in sd card and tried to recover it using color os recovery using install from storage device, but there from sd card option is not showing and I am not able to use my mobile phone and its urgent, please help me.
fawazahmed0 said:
Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
ADB Installer tool: https://forum.xda-developers.com/android/general/tool-adb-fastboot-installer-tool-windows-t3999445
Click to expand...
Click to collapse
Parmardada said:
my device is in infinity boot loop mode. it was on everything stock mode.
right now i cant even boot into recovery mode or fastboot mode.
plz help me guys.
Click to expand...
Click to collapse
this also happen on my realme 3, do you found the solution yet?
I'm desperate to fix mine.
MNaikSwalayan said:
this also happen on my realme 3, do you found the solution yet?
I'm desperate to fix mine.
Click to expand...
Click to collapse
this happens to my realme 3 pro too.. any help?
anyone got the solution i am also stuck not connecting to pc not going into fastboot too
i need help
my device have unlocked bootloader
and flashing custom recovery but only 1 time to enter recovery ,, after that recovery has gone...
and i receive notifacation for update so i'm download the update .. but went something wrong with update ,,,
i stuck at logo with infity bootloop,, it say recovery mode which is disappear it self ,, and i cannot go to fastboot mode to reboot system,,,
what should i do?
najam489 said:
anyone got the solution i am also stuck not connecting to pc not going into fastboot too
Click to expand...
Click to collapse
please let me know I you find the solution
no recovery mode
question sir, it possible to fix if realme recovery mode can't access or not contenuing to boot on recovery mode? do u have any way to flash a rom even without recovery mode?
thanks for reply ?
Were all the same problems facing rightnow. I recently flash the stock recovery and it turn to endless bootloop. Does one of us already fix the issue ? I can't boot to fastboot.
Theres only one left chance of reviving damage of phone software. JTAG is the best option . But JTAG is expensive. Better go to nearest cellphone shop and pay their fees.
Realme 3 bootloop. Can't turn off, Recovery mode, Fastboot.
My device RMX 1821...(RUI C.16)
After flash custome Rom Bliss device is good...
But i have problem after flashing magisk my device bootloop on logo...i try to reboot recovery cant be acess ...
Just come to fastboot mode.
Try to install again the recovery "error' cant load partition ,
I try to flashing by Realme flash tool ...
Error' with Cant load system' image ( getvar variable not found)
Any solution please for my phone....
Very kindly to be help me...
charlis88 said:
My device RMX 1821...(RUI C.16)
After flash custome Rom Bliss device is good...
But i have problem after flashing magisk my device bootloop on logo...i try to reboot recovery cant be acess ...
Just come to fastboot mode.
Try to install again the recovery "error' cant load partition ,
I try to flashing by Realme flash tool ...
Error' with Cant load system' image ( getvar variable not found)
Any solution please for my phone....
Very kindly to be help me...
Click to expand...
Click to collapse
Me also
fawazahmed0 said:
Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
ADB Installer tool: https://forum.xda-developers.com/android/general/tool-adb-fastboot-installer-tool-windows-t3999445
Click to expand...
Click to collapse
my realme 3 pro devise is stucked in twrp and bootloader after i flashed a wrong rom and after flashing the corrext rom also , its stucked..pls help
Can anyone give the link of recovery.img because in stock rom which i downloaded there isn't any recovery.img please help...... My stock rom is up to date

Unable to enter fastboot or download mode Reamle X

I wrongly flashed CN ROM instead of Global, now unable to enter in download/fastboot mode, its on boot loop, and I can enter only recovery mode. Tried wipe data, it is not fixing anything. Can't flash anything from ADB as it is not entering into fastboot mode. Tried to enter edl mode by pressing volume + and -, but port is detected only for a few seconds as no phone, and then disappear. Any solution?
nrynn said:
I wrongly flashed CN ROM instead of Global, now unable to enter in download/fastboot mode, its on boot loop, and I can enter only recovery mode. Tried wipe data, it is not fixing anything. Can't flash anything from ADB as it is not entering into fastboot mode. Tried to enter edl mode by pressing volume + and -, but port is detected only for a few seconds as no phone, and then disappear. Any solution?
Click to expand...
Click to collapse
Go to service center no flashing software develop yet..

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