I was trying to flash a recovery file ony my A20e phone. But now it's stuck on blank screen. I can't even enter download mode. Every time I restart it (using VolDown + Power) it just goes back to that same blank screen
try this
To go to download mode
Normal method
1. Turn off phone
2. Hold down both volume keys
3. Plug in computer
Bootlooping
1. Plug in to computer
2. Hold down both volume keys
For a difficult phone
1. Connect usb to computer but not to phone
2. Hold down all 3 keys
3. When it buzzes release power and quickly plug in usb to phone.
It might take a few times to get it right.
If it's REALLY BAD
1. Wait for the battery to completely run down and use normal method.
https://forum.xda-developers.com/galaxy-a20/how-to/crash-recovery-t4068369
Related
my vibrant is bricked really badly i tried to odin back to stock but it failed and messed up my phone now i can't go into download mode and i have no battery sign or boot sign or any sign no matter how much i press buttons on it anymore
Have you tried this method?
1. Power off the phone
2. Take out the battery
3. Press and hold BOTH volume up and volume down buttons
4. Pop in the battery
5. Attach USB cable to the phone. The other end of the cable should already be plugged into a computer
The phone now should be in the download mode
If the above fails get a jig..... but the above post should do it...... Remember to have Odin up
I tried flashing the bootloader from here.
Then it went crazy or something, and got stuck on the powered by android logo, however i was still able to boot into download mode the first time by holding power + volume down button
to simulate a battery pull then quickly holding the volume down + home + power again. Then I tried flashing TWRP immediately in an attempt to make it work because i have a flash drive to microUSB adapter that allows me to read flash drives from my phone ( so that I can flash the rom properly ). The last time I was in TWRP there was 0 things in my storage everything was wiped after I flashed TWRP the first time
Now im trying to go back into download mode but it just wont let me after the battery pull.
1.) After simulating the battery pull, I immediately let go when the screen is dark.
2.) I immediately attempt to go into download. It shows the powered by android for a second, then flickers then it's back to the powered by android again.
3.) I think my recovery and download is screwed. Or something is going on
=== EDIT ===
I managed to get into download mode and flash back my stock rom.
I think the phone must have read my Power & Volume Down & Home button as the battery pull because I let go of all buttons completely before doing it.
Steps to get out of bricked hell:
• Hold Power & Volume Down until the phone turns off
• Immediately without letting go of the Power & Volume Down button, press the home button as well.
• If the timing is not correct just retry.
Got a broken power button and need to turn on your OnePlus X?
As long as one of your volume buttons and your microUSB port still work, you're lucky.
If the volume down button is working:
1. Press and hold the volume down button.
2. Connect to a USB power source.
3. The phone should vibrate and boot into the recovery. You can release the volume button at that point.
4. If you have the stock OnePlus recovery installed just tap "English", "Exit" (if present), then "Reboot".
5. Your phone should now boot up!
If only the volume up button is working, things get a bit tricky.
Before you start, read through all of the steps and the paragraph below to make sure this goes as smooth as possible.
1. Connect your device to a USB power source without pressing any button.
2. Wait for about half a second, then press and hold the volume up button.
3. If you've hit the right moment, your device will boot to fastboot mode.
4. Connect to a PC and run the command "fastboot reboot".
(If you don't know what fastboot is or you haven't set it up yet you should be able to find plenty of guides online.)
A word of caution on finding the right moment to hit the volume button:
Start with longer delays and work from there. If you hit the volume up button too early the phone will enter EDL mode, which can be hard or annoying to get out of. EDL is Qualcomm's low-level Emergency Download Mode which allows flashing the device.
When entering EDL mode the phone won't vibrate and the screen will stay off. The phone remains in EDL mode after disconnecting the USB plug.
Normally you could press and hold the power button until a hard reset to get out of there, but in this case you have the following options:
- Unplug the battery to power down the device completely if your device happens to be open.
- Wait? For as long as it takes for your device to reset from this mode on its own or for the battery to run out. idk, good luck.
- Use an EDL mode flashing tool on a PC to send the power reset command to your device. This could be viable if you have already used such a tool before, e.g. by following the "Mega UnBrick Guide" by Naman Bhalla. Alternatively you could dive into this cross platform command-line tool, which works on WIndows, Linux and macOS. Using this approach is a bit overkill and quite the tangent from what you're actually trying to do, but being able to make use of EDL can come in handy in other situations as well when you're tinkering with your Android device so taking that detour might just be worth the time.
Awesome, it worked for me.
-Incase you have entered into EDL mode, then continue charging your mobile, it will be back to old state after sometime (12 hours maybe).
- To get fastboot mode, first insert power cable then wait for vibration/ screen light illumination after that press volume up button. if you press volume up button before inserting power cable, then it will go to EDL mode, so be careful about it.
I was trying to install a custom rom. I had unlocked bootloader and twrp already set up then installed ultimate Q then installed Evolution X 4.0. everything went fine until i rebooted it. Now phone doesn't start if i hold the power button. only response if I hold "vol down + power" then the screen turns on. If i try to "vol up + power" it doesn't boot into twrp. Download mode doesn't work either (I cant get to it).
This video (youtub/watch?v=Rc1Lvihyp8c) shows the guy using some sort of usb attachment. Is there a software equvalent of that which i can use my pc to reset the phone?
Any way to get it to flash twrp again?
reydoxs said:
I was trying to install a custom rom. I had unlocked bootloader and twrp already set up then installed ultimate Q then installed Evolution X 4.0. everything went fine until i rebooted it. Now phone doesn't start if i hold the power button. only response if I hold "vol down + power" then the screen turns on. If i try to "vol up + power" it doesn't boot into twrp. Download mode doesn't work either (I cant get to it).
This video (youtub/watch?v=Rc1Lvihyp8c) shows the guy using some sort of usb attachment. Is there a software equvalent of that which i can use my pc to reset the phone?
Any way to get it to flash twrp again?
Click to expand...
Click to collapse
To go to download mode
Normal method
1. Turn off phone
2. Hold down both volume keys
3. Plug in computer
Bootlooping
1. Plug in to computer
2. Hold down both volume keys
For a difficult phone
1. Connect usb to computer but not to phone
2. Hold down all 3 keys
3. When it buzzes release power and quickly plug in usb to phone.
It might take a few times to get it right.
If it's REALLY BAD
1. Wait for the battery to completely run down and use normal method.
Hi!
I have a problem with a galaxy a40 device, I flashed a stock ROM with Odin, everything went fine, green lights, PASS and all, but now the device just won't go pass the SM logo anymore. When I turn on, logo appears 2-3 secs I get a warning of the unlocked BL then logo comes back and after a second the phone restarts itself and the same goes on forever ( well about several hours, and after that it just shuts off somehow ). I cannot enter recovery mode or download mode at all. I keep pressing the combinations Power + Vol Down, Power + Vol Up, All three and every combinations I have just found on the internet so far. Odin doesnt recognize the phone, which is not a surprise since it won't start up. I have tried with adb but waiting for device is all I get.
How is it even possible that I cannot enter download mode at all? There was no problem with the physical keys, and the power still works, I cannot test the Vol buttons tho.
Has anyone ever had a problem like this? How can I come back from this? Is there a way to flash a ROM without download mode or turned off phone?
Thanks for any help!!
The download mode for this model is different from previous Samsung's :
IIRC, with the phone off, you need to hold VolumeUp and VolumeDown, then plug in the USB cable connected to a computer (you may need to press Power to power up the phone, I can't recall properly).
From there, you should be able to restore a stock ROM with Odin.
Let us know if it helped !
gmarko247 said:
Hi!
I have a problem with a galaxy a40 device, I flashed a stock ROM with Odin, everything went fine, green lights, PASS and all, but now the device just won't go pass the SM logo anymore. When I turn on, logo appears 2-3 secs I get a warning of the unlocked BL then logo comes back and after a second the phone restarts itself and the same goes on forever ( well about several hours, and after that it just shuts off somehow ). I cannot enter recovery mode or download mode at all. I keep pressing the combinations Power + Vol Down, Power + Vol Up, All three and every combinations I have just found on the internet so far. Odin doesnt recognize the phone, which is not a surprise since it won't start up. I have tried with adb but waiting for device is all I get.
How is it even possible that I cannot enter download mode at all? There was no problem with the physical keys, and the power still works, I cannot test the Vol buttons tho.
Has anyone ever had a problem like this? How can I come back from this? Is there a way to flash a ROM without download mode or turned off phone?
Thanks for any help!!
Click to expand...
Click to collapse
Here the same problem, have a40 in loop and never get rocgnized for computer, tryed many different cables, and installed a booring large amount of drivers software and nothing...
you need to power off device completely. let battery drain if you can't shut down. press and keep holding volume down + plug in usb cable for Odin3 (I doubt both?)
aIecxs said:
you need to power off device completely. let battery drain if you can't shut down. press and keep holding volume down + plug in usb cable for Odin3 (I doubt both?)
Click to expand...
Click to collapse
Generic answers, repeated 800 times why really need to waste a post with that? and that not was the problem:
1- For no usb recognition, is this phone bad design, in the back tap where is the battery in the samsung logo more or less if you push with fingers and charge is because the design of baterry is so crap and your usb port goes off when the under tap cable moves or just get little out of conection. If you can get working after push, usb on phone will do too.