Develop Bugs

Fastboot Problems, because of hw keys

Hey
im trying to unlock my bootloader again (had to lock it because i did a OTA on unlocked stock firmware)
im currently on stock ics, if that has anything to say. but the problem is when trying to install the fastboot drivers in windows device management
as far as i have read, when going into fastboot, is powering of the device, press and hold the menu button and connect the usb cable to the phone then u will get a blue light, find the drivers and install
but my menu button does not work anymore, idk why but it wont work when running android either. i have also tried getting in fastboot mode by holding the back button, then i get a green light as usual.
is there any way to enter fastboot without holding the menu button, or do i need to order a new keypad board for my phone
Thanks, Joakim
EDIT!!!!: i dont know what i have been thinking about, as you could enter fastboot, by typing adb reboot bootloader in adb, sorry

good you found out... there's also an option in flashtool inside fastboot window called "reset to fastboot through ADB"... also works... obviously your phone but be turned on and connected to PC through ADB.

[Q] Stuck on sony logo

Hi,
My phone is stuck at sony logo, after install a custom rom (RomAur). I have locked BL, and I put my phone into fastboot mode and im tryng to fix it with flashtool (pc recognize the phone). Can I flash a rom in fastboot? it doesn´t work into flashmode. Any help? (As you can see im new in this topics...)

Did you try download stock ftf - run flashtool - choose the ftf, when ask for the phone ... push the off button for 5s (behind the phone next to sd slot), then put the phone in flash mode (vol. down) - connect your usb, phone should flash.
Sent from my C6506 using Tapatalk 2

Pablo256 said:
Hi,
My phone is stuck at sony logo, after install a custom rom (RomAur). I have locked BL, and I put my phone into fastboot mode and im tryng to fix it with flashtool (pc recognize the phone). Can I flash a rom in fastboot? it doesn´t work into flashmode. Any help? (As you can see im new in this topics...)
Click to expand...
Click to collapse
Every ZL/Z is meant to work in Flash Mode, just reset the phone by holding the OFF button on the back panel where the SD-card and SIM card are placed. Disconnect your phone from the computer, hold the OFF button until it vibrates THREE times (hold it for 3 seconds it vibrates twice (hard restart), hold for 5 it vibrates thrice(forced flashmode)) soon after plug in the phone into your computer (along with the proper drivers installed from Flashtool in (or wherever you installed it) C:/FlashTools/Drivers (these drivers are SOE-blah, ADB, and fast boot mainly located at the bottom.) Once you've accomplished this, head on over to the Android Development section download a FTF file and restore. If you wish to keep all your data try reinstalling RomAur with proper installation instructions, due to my lack of experience with that rom I cannot give you the best advice other than if you have CWM installed it's an option to constantly flash other roms/zips to possibly fix your scenario. Good luck!

I'll give you more details now, about my problem.
1.- My phone was OK (rooted and with CWM) running Hackit custom rom.
2.- I install RomAur, then on reboot the phone got stuck on sony logo (it means, sony logo, and then reboot, sony logo and then reboot, infinite loop). Pressing OFF button (back next to the SD) it restarts the phone but the infinite loop continues.
3.- I installed flashtool (drivers, etc)
4.- I run the phone and then pressing VOL DOWN and plugin the usb cable at the same time it puts on yellow light (i dont know what mode it is). Infinite loops stops, phone is off and battery charging icon is displayed.
5.- On yellow light then i disconnect the phone and then pressing VOL DOWN and reconnecting flashtool recognize it ("28/024/2013 20:24:13 - INFO - Device connected in flash mode"). No light on the phone. If i do the same but with VOL UP it runs fastboot (blue light).
6.-On flashmode, I press the flash device button (black beam icon), it ask for mode, i choose flashmode. Then i select the ftf. and flashtool displays
28/043/2013 20:43:29 - INFO - Preparing files for flashing
28/044/2013 20:44:07 - INFO - Device disconnected
And the infinite loop returns...
If i pressthe powe off button nothing happens, it vibrates only one time, every restart on the loop
HELP! and thanks for your answers

From your comments, get to your step 5. Meaning get your phone off. Run flashtool choose stock ftf when it asked for the phone. Holding Vol.Down plug in usb - this should reset your phone and get you going.
Sent from my C6506 using Tapatalk 2

[Q] Cannot open fastboot after BL unlock

I unlocked my BL and after that when I reboot my phone with volume up pressing nothing happens. Why? what should I do ?

To enter fastboot mode you don't need to reboot, simply press Volume + and plug it onto the PC while the device is POWER OFF , it should indicate the fastboot mode with a blue LED

arc s fastboot and flashtoot?

I have arc s with running cm11.All the drivers are completely install on my laptop window 8.1.when I swtch to fastboot my arc s doesn't load to fastboot why although I have latest fastboot and adb drivers and latest flashtool too.when ever I try to load to fastboot or flashboot blue led blinks for just 0.2 sec and mobile goes to charging plzzz help me to get rid of this.When i used flashtool n check the option of drivers in flashtool,flashtool says list of adb devices CX... And list of fastboot devices none.When i switch off the phone and turn it to fastboot blue led once again blinks for just 0.2s plzzz help pllzzzzzzz

I have exactly the same problem. Can't get my device to go into any modes - flashmode or fastboot mode. have my device turned off, hold down the back (or menu) button, and finally connect the USB. The green LED flashes for less than 0.5s and then continues to charge mode with battery icon. I want to refresh the firmware in my phone using PC companion (the latest version) but when asked to put the device into flashmode the PC doesn't detect it. PC companion has installed all the correct USB drivers on my computer. Anyone knows how to solve this problem?
Thanks

Any way to unbrick without modifying the wire?

i am sorry but i have searched a lot but i couldn't unbrick my ZUK Z2, i flashed the Deodexed stock ROM and then the screen went all black with the LED glowing. If i press the power button i just see the ZUK logo and the screen goes black, i tried to boot it into fastboot but no luck. I somehow managed to get into the 9008 mode but while flashing with QFIL i get the sahara error saying unable to read header or something and with MiFlash i am getting "cannot read hello packet"
Any Help will be appreciated
EDIT:
The device has been fixed, i had to press the download button on the QFIL as soon as my phone boots into EDL mode.

did you flash through twrp? and if your bootloader if unlocked then you should have 5 sec bootloader placeholder from where u can reboot recovery . and if you are stuck into something different then it will be difficult to recover but possible. for sahara fail , play with settings in qfil like emmc, reset ,etc and try.And you can remove the port from device manager and retry if u r getting 9008 port.You should not get sahara fail. You will be get out of this easily just try things suggested. Your device is live as zuk logo is showing so dont worry.
And use latest qfil: http://www.androidbrick.com/download/download-latest-qualcomm-flasher-qfil-qpst-2-7-460/#
EDIT: Try this too-
Bootloader mode: shutdown state, press and hold the volume plus key + volume minus key, while the usb line connected to the computer until the release button.
Qualcomm QPST (9008 port) : shutdown state, press and hold the volume plus key, press the power button at the same time usb cable to connect the computer. This mode is a black screen state.
For recovery: press and hold the power key + the volume plus key + the volume down key until you release the release button.

Just buy DFC cable a.k.a Deep Flash Cable. The cable is same as you wire cable manualy

Kalp3sh S1NGH said:
i am sorry but i have searched a lot but i couldn't unbrick my ZUK Z2, i flashed the Deodexed stock ROM and then the screen went all black with the LED glowing. If i press the power button i just see the ZUK logo and the screen goes black, i tried to boot it into fastboot but no luck. I somehow managed to get into the 9008 mode but while flashing with QFIL i get the sahara error saying unable to read header or something and with MiFlash i am getting "cannot read hello packet"
Any Help will be appreciated
Click to expand...
Click to collapse
Onces that you are in 9008 mode you need to use ADB
"Adb reboot edl"
You are a lucky guy, i needed to conect grenn and black cable of the smartphone to put in 9008 mode

ozi87 said:
Onces that you are in 9008 mode you need to use ADB
"Adb reboot edl"
You are a lucky guy, i needed to conect grenn and black cable of the smartphone to put in 9008 mode
Click to expand...
Click to collapse
So i plug my phone in 9008 mode and go straight to adb?

Kalp3sh S1NGH said:
So i plug my phone in 9008 mode and go straight to adb?
Click to expand...
Click to collapse
Have you both any idea about adb! Edl is itself 9008 mode also called download mode. Adb is debug bridge and it is used in OS to control it by this bridge from PC.

pixel0 said:
Have you both any idea about adb! Edl is itself 9008 mode also called download mode. Adb is debug bridge and it is used in OS to control it by this bridge from PC.
Click to expand...
Click to collapse
yes exactly, that's why i asked.

pixel0 said:
did you flash through twrp? and if your bootloader if unlocked then you should have 5 sec bootloader placeholder from where u can reboot recovery . and if you are stuck into something different then it will be difficult to recover but possible. for sahara fail , play with settings in qfil like emmc, reset ,etc and try.And you can remove the port from device manager and retry if u r getting 9008 port.You should not get sahara fail. You will be get out of this easily just try things suggested. Your device is live as zuk logo is showing so dont worry.
And use latest qfil: http://www.androidbrick.com/download/download-latest-qualcomm-flasher-qfil-qpst-2-7-460/#
EDIT: Try this too-
Bootloader mode: shutdown state, press and hold the volume plus key + volume minus key, while the usb line connected to the computer until the release button.
Qualcomm QPST (9008 port) : shutdown state, press and hold the volume plus key, press the power button at the same time usb cable to connect the computer. This mode is a black screen state.
For recovery: press and hold the power key + the volume plus key + the volume down key until you release the release button.
Click to expand...
Click to collapse
I think the bootloader is locked again, i can't boot into recovery. I tried the latest QPST and still getting unable to read packet header read 0 bytes error and Sahara Failed.

Kalp3sh S1NGH said:
I think the bootloader is locked again, i can't boot into recovery. I tried the latest QPST and still getting unable to read packet header read 0 bytes error and Sahara Failed.
Click to expand...
Click to collapse
If bootloader is locked or unlocked , 9008 mode will work for sure. Also Use buttons combination to enter fastboot if u can then unlock and flash recovery from there .

To avoid this problem again, when you flash stock roms after using Custom Roms, make sure you format the System, data and cache partitions back to EXT4 format, since Stock firmware (even the moded ones) DOES NOT support any other System/Data/ Cache format.
After loading the bootloader, the phone will end with black screen and white led on. You just need to reboot on recovery again and advance format System/ Data/ Cache back to EXT4, connect the phone to the PC again, transfer the ROM file to the internal storage and make the Flash again...
Hope this help you