[Q] How do you put your phone is fastboot? - Sprint LG G2

I'm downgrade my modem to ZV8 so that I can run CM11.
So that I can run:
fastboot erase modem
fastboot flash modem modem-zv8.img
But I can't seem to get my phone into fast boot. TWRP recovery does not appear to offer it.
I-ve tried using ADB REBOOT-BOOTLOADER but it just reboots the phone when I try it. The same thing happens from TWRP when I select BOOT-LOADER.

Just tot to zv8. Easier and safer. No problems with a mistake. Firmware and radio would be needed I do believe
Sent from my LG-LS980 using Tapatalk

normally what i do is if i can boot my device to the stock rom i install autorec d802 version anf run the prompts and reboot to the recovery which then gives me fastboot

Related

[Q] Flashing Radio's with fastboot.

Hi
Now that we have S-OFF and the ability to flash radio.img's from fastboot, I just wondered what follows the flashing?
What I mean is, when you flash a radio via recovery, it flashes, then you have to reboot the device using the recovery menu, it then reboots, does some more flashing, and then reboots again.
Does the fastboot method do the same? Just for future reference so I don't pull the battery (for example) at the wrong time.
Thanks
Stu
No just use the standard fastboot flash command and it should flash straight away, thats why recovery has to reboot because it has to flash from the bootloader....
Sent from my HTC Desire using Tapatalk

Problem with fastboot

Hi
I currently unlocked my bootloader with installed cwm.Then i tryed cm10,1 but got back to stock again because of bad battery life with cm. I flashed my kdz and everythin works as usual. I even rooted it again but now i cant enter fastboot mode. Only hard reset menu and stock recovery but not fastboot. What the heck happened? I cant run freegee again because i already did it?
Sent from my LG-E975 using xda premium
EDIT:
Fastboot works again. As i can see is that flashing KDZ locking phone again and you need to root and run FreeGee again in order to get into fastboot to choose recovery again.
It works now. I run FreeGee and now it enters fastboot menu and recovery.

Please Halp! Recovery Issues!??

Ok I have rooted my phone a Z00A with 16gb/2gb using this Video youtube.com/watch?v=9l-l96jtt10 and installed TWRP but whenever I try to install and boot into recovery it boots into fastboot instead same as when I try to install a rom. How do I get into TWRP and get rid of Fastboot?
The main problem is fastboot, it's the only thing my phone will load and all the options except for power off just reset the phone into fastboot. If i hook up to my pc and use Fastboot Recovery Launcher I can get it to boot into TWRP with all it's functionality but no matter what I do once I reboot it's back to fastboot screen. I have tried to install SuperZenR19 and the CM12 roms and even formatted data before installing a rom but still it reboots to fastboot.
Enable USB debugging and connect it to system.
Open up the fastboot (command prompt) and flash the recovery again.
Use SSJ Tethered Version (Permanent) version and then try.
Make sure you flash it by using fastboot
'fastboot flash recovery filename.img'
Remove ' '
Success!? Nope!
Ok I reran the CWM cai dat and finally booted in TWRP, just flashed SuperZen 19. Thanks for the replies and wish me luck! The stock os is just such memory hogging garbage that I hope I will get better performance now.
*** EDIT***
Spoke too soon, I was able to install SuperZen R19 but it won't boot into the system just goes to fastboot. The only way it seems I can get back into TWRP is to run cai bat hit T4 and TWRP will load but upon reboot it's back to the fastboot screen.
****EDIT**** It won't boot into anything but fastboot after a reboot, it's not bricked but pretty damn close. I can get it to load twrp only if I go through Cai bat but even so after I install and wipe it just boots into fastboot again. FIDDLESTICKS!!
You are following the old TWRP method Dude.
Follow the latest one and then flash a stock rom and check if the problem persists.
Unlock the bootloader too. To flash roms and permanent TWRP.
Tell us if any luck.
Factory reset from the menu also clear cache?
Inviato dal mio ASUS_Z00AD utilizzando Tapatalk
I got it working finally after I was able to flash boot and droid boot and then installed Barebones and it finally booted. I'm probably going to leave it alone for now.

Flashing OTA failed. I need help to restore my phone.

Hi,
My phone is rooted and the DPI was customized. I tried to manually flash the OTA but the installation got stuck so I cannot boot into Android anymore. I tried those restore tutorials but when I try to flash using fastboot I get a "FAILED (remote: Permission denied). I tried to clear the cache in the recovery and then it got also stuck and now I can't access recovery.
This is what I can read in the bootloader
---------------------------
FASTBOOT MODE
PRODUCT_NAME - Z00A
VARIANT - ASUS_Z00A
HW_VERSION -
BOOTLOADER VERSION - unknown
IFWI - 0094.0177
SERIAL NUMBER - Xxxxx....
SIGNING - ?
SECURE_BOOT - ?
continue fastboot process
-----------------------------
I just been successful in installing TWRP recovery using the toolkit.
Edit: I installed the latest CM 13 build and it can't boot to Android. It goes straight to TWRP recovery no matter how I turn on the phone. My bootloader still looks the same.
Edit: I tried flashing a prerooted .img and stock recovery and I can go back to recovery but I still can't boot into Android or factory reset or nothing.... I'm desperate!
manlord said:
I just been successful in installing TWRP recovery using the toolkit.
Edit: I installed the latest CM 13 build and it can't boot to Android. It goes straight to TWRP recovery no matter how I turn on the phone. My bootloader still looks the same.
Edit: I tried flashing a prerooted .img and stock recovery and I can go back to recovery but I still can't boot into Android or factory reset or nothing.... I'm desperate!
Click to expand...
Click to collapse
You may need to flash boot.img and droidboot.img for the same version of rom you flashed, ie. if you flashed 139 then you must flash the recovery, boot and droidboot images for 139...
As you found the pre-root rom files, download the whole file and flash these image files too making sure you use the right commands or you will brick your phone...
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash fastboot droidboot.img
fastboot flash system system.img
Just remember, flashing these partitions can, potentially, brick your phone. You do this at your own risk...
Happy flashing....
ultramag69 said:
You may need to flash boot.img and droidboot.img for the same version of rom you flashed, ie. if you flashed 139 then you must flash the recovery, boot and droidboot images for 139...
As you found the pre-root rom files, download the whole file and flash these image files too making sure you use the right commands or you will brick your phone...
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash fastboot droidboot.img
fastboot flash system system.img
Just remember, flashing these partitions can, potentially, brick your phone. You do this at your own risk...
Happy flashing....
Click to expand...
Click to collapse
Thanks for your help. I did that earlier with the latest pre-rooted OTA and now it gets stuck on the splashscreen. I tried going to recovery (stock now) and doing a factory reset after flashing system.img and it still the splashscreen after I reboot. I know the 1st boot after flahing a ROM can be long, but now it's been an hour and I'm still on the splash screen...
The only other thing I can recommend is to flash a RAW rom image. As I have never needed to do this I can't say how this works but if you do a search you should find out the procedure...
This may relock your bootloader so just be aware....

No more recovery or fastboot.

My device is an Xperia Xa1 Ultra G3223.
Long story short, I was on rooted Android 7.0 with magisk v16 or 17 don't remember and TWRP. I was unable to update my firmware using the system so I used XperiFirm to get the latest firmware from my carrier. I used flashtools to built a .ftf for branding I wrote Sony and version I put 48.1.A.2.101. I did a factory reset then flashed it.
Now I can boot into android no problem but if I try to enter recovery it just reboots into android using adb reboot recovery. And if I try to use adb reboot-bootloader it just boot loops and the only way I can get out of it is to hold vol down to enter flash mode and reflash my .ftf. I tried using flashtool to enter fastboot but it still boot loops.
Now I'm at a loss for what to do. I was going to try and flash a kernel and recovery from another thread here but I cant do that. Is there a way to flash a kernel/recovery without fastboot or something ?
Thank for any help
Ok well i finally got it working again! I tried using Emma and that updated me to 116 but i was unable to get to the bootloader. Funny enough i unplugged my phone from the usb hub i was using and plugged it directly to my pc i was able to get to the bootloader. So i re flashed 101 and then flash a kernel and a recovery and all is good now no more bootloop when i try to go into the bootloader.

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