Fastboot not working!?!? - ONE Q&A, Help & Troubleshooting

So I managed to install the adb drivers for my OPO and then used the OPO Toolkit to reboot into fastboot mode. But the phone just shows a black screen. I tried manually booting into fastboot but it doesnt work. Just shows a black screen, windows detects something but seems like it gets disconnected immediately. The cable is working fine, I checked that already.
I unplugged the cable and booted into fastboot manually and it works but as soon as I plug the cable back in, the phone just shuts down I think and returns to the black screen. I tried searching but couldnt find a solution. Any idea where I'm going wrong?
PS: Fixed the issue by rebooting the phone to recovery and wiping everything.
Mods, can you please delete this?

Problem solved. Thread closed.

Related

[Q] D838 brick, cant tell if soft or hard

i tried installing a custom rom on my g pro 2 but eventually the device got some errors. i tried to restart but the phone wouldnt start. it boots to LG logo (not moving) and blank screen and same thing over and over again. so i tried to go for download mode, which is half gone. when i plug the phone into download mode, the first screen comes out, download mode. then screen goes blank and nothing else. my pc doesnt detect anymore, it just shows an unknown usb bulk device and 8 usb drives pop up.
i tried factory reset too but nothing. stays erasing forever.
i have the KDZ File already and the flashing tool. i just don't know how to flash it like this.
solved
Disaster Master said:
i tried installing a custom rom on my g pro 2 but eventually the device got some errors. i tried to restart but the phone wouldnt start. it boots to LG logo (not moving) and blank screen and same thing over and over again. so i tried to go for download mode, which is half gone. when i plug the phone into download mode, the first screen comes out, download mode. then screen goes blank and nothing else. my pc doesnt detect anymore, it just shows an unknown usb bulk device and 8 usb drives pop up.
i tried factory reset too but nothing. stays erasing forever.
i have the KDZ File already and the flashing tool. i just don't know how to flash it like this.
Click to expand...
Click to collapse
problem solved. after the factory reset i pulled out the battery and download mode worked again
great to know that you fixed it

No longer able to boot into recovery mode after flashing LineageOS

Hi all, have a rooted OPO that was running ExodusOS. I decided to try a flash of Lineage and so booted into recovery, backed everything up, flashed it. Everything seemed to go okay but after the boot logo the screen just goes black and stays that way until it gets shut back off. I went back to TWRP, loaded my backup and all seemed well as I was still able to use my old backup just as normal. Well, I tried reflashing Lineage from TWRP again and I still get the same black screen issue. This time, however, the phone will neither boot into Fastboot nor into recovery mode and just goes straight into loading Lineage. Because of this I am left with a soft brick until I can get this straightened out. I tried connecting the phone to my PC but it is not detected as a device. I only need to boot into my backup one more time so that I can back everything up, so even if it's only a temporary fix, I'm okay with that too. Any suggestions?
AMpageg2 said:
Hi all, have a rooted OPO that was running ExodusOS. I decided to try a flash of Lineage and so booted into recovery, backed everything up, flashed it. Everything seemed to go okay but after the boot logo the screen just goes black and stays that way until it gets shut back off. I went back to TWRP, loaded my backup and all seemed well as I was still able to use my old backup just as normal. Well, I tried reflashing Lineage from TWRP again and I still get the same black screen issue. This time, however, the phone will neither boot into Fastboot nor into recovery mode and just goes straight into loading Lineage. Because of this I am left with a soft brick until I can get this straightened out. I tried connecting the phone to my PC but it is not detected as a device. I only need to boot into my backup one more time so that I can back everything up, so even if it's only a temporary fix, I'm okay with that too. Any suggestions?
Click to expand...
Click to collapse
https://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
Sounds like a Hardware issue? Sorry to say what your saying doesn't add up and or make sense. Fastboot should work no matter what even if you soft brick it and mess up recovery. I suggest letting the power fully drain maybe and google how to fast boot in case you are doing it wrong.
Mr.Ak said:
https://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
Click to expand...
Click to collapse
I've tried that but it can't find the phone. The phone gets detected as a new device in windows as evident from the device connection sound but it also never shows up in the list of devices from My Computer.
AMpageg2 said:
I've tried that but it can't find the phone. The phone gets detected as a new device in windows as evident from the device connection sound but it also never shows up in the list of devices from My Computer.
Click to expand...
Click to collapse
I agree with what @Shinobi_warrior said.Seems like you just have a soft brick,so you should be able to boot into fastboot mode without any issues.Are you sure you're doing it the right way? Did you try draining battery completely and then booting into fastboot(yes,you don't need much battery to boot into fastboot mode)?
Well I was finally able to get the device detected by ADB, but it just shows as offline. I attempted to use the repair kit and nothing seemed to happen. I also attempted a different tool (https://forum.xda-developers.com/on.../oneplus-one-toolkit-manudroid19-gui-t2807418) and then booting into either fastboot or recovery that way, a terminal window pops up and quickly disappears, and then nothing else happens. I still see the TugaPower boot logo and it still goes to the blank black screen after this.

Screen not working and can't boot into fastboot

I was using havoc os with the last beetle kernel, but one day my phone suddendly stopped working. When I try to boot it up, the screen stays black and it vibrates once in a while. Once it stops vibrating i can connect it to my computer and see internal storage, i have access to adb commands but never managed to go fastboot mode. I'm prettry sure this is not hardware problem because absolutely nothing happened before it stopped working. It was just standing in my pocket. Can somebody help?
oh, i managed to access fastboot, can somebody help?
i managed to flash miui rom, now the phone is making sound, but the screen is still not showing anything

G7 Power possibly soft-bricked, can't access fast boot anymore

Recently had issues with my G7 Power and it seems to be soft-bricked. I was using an app and the app in question usually has the occasional stutter but then things resume to normal a second later. This is what happened yet this time the phone froze and was completely unresponsive. I held the power button down, turned it off and back on and it seemed fine but for whatever reason it got stuck on the Verizon loading screen which never happens. Turned it off and on again and it got stuck on the Moto animation so I held the power button down again. The phone shut off and refused to turn on again.
Eventually I ended up getting into fast boot (initially tried getting into fast boot many times with no success, no idea why it suddenly worked that time) and reset the phone through there and it would still get stuck on the Verizon loading screen. Kept turning the phone off and returning it to fast boot to repeat the process which was probably a stupid mistake on my part as the phone proceeded to shut off like expected but this time I couldn't get into fast boot anymore at all, even when keeping it on the charger that came with the phone.
LMSA was looking like the perfect solution but my PC isn't recognizing the phone as a drive so I don't think any sort of software made for instances like this are going to work unless there's something I'm doing wrong here. I can't get into the phone to enable USB debugging either.
Any recommendations as to what I should do? It's looking like sending it back to get it fixed is my only option here. Never had any issues with the phone until now.
Re-flash Stock ROM.
Code:
adb devices
adb reboot sideload
adb sideload <STOCK-ROM-ZIP>
jwoegerbauer said:
Re-flash Stock ROM.
Code:
adb devices
adb reboot sideload
adb sideload <STOCK-ROM-ZIP>
Click to expand...
Click to collapse
My PC won't recognize the phone at all, would this still work? Would it also completely wipe the device's memory?

unable to unlock bootloader/fastboot mode

Recently all of a sudden my phone(Realme X2) got stuck in bootloop. It happened all by itself, phone got drained out and I connected it to the charger after 15mins and in no time it was in bootloop.
Now I'm trying to access the fastboot but I'm unable to unlock it as my phone is stuck in this bootloop.
I tried using adb commands but its not reading, and in my device manager the port section driver also keep on looping. I tried to access the stock recovery which is really of no use.I tried all the ways out by my side none is working.
Any idea how I can flash my device and get it back to usable?

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