Hello!
I cant get further on with an my tablet an RK3168 device.All the specs are in this topic, because i was looking for a rom:
http://www.arctablet.com/blog/forum...ssible-clean-4-2-2-or-a-customcwm-rom/#p60994
But i ran into things what i can not really understand or place, and i also already tried a lot already..Maybe its the soc itself, hope someone can help me a little bit.
I wane install a rom, so i first made an backup with RK1.2tools and this backup is ready in flashtools1.37 from finless.It finds rk loader and its ready to flash..
But here i get stucked, adb works, minimal adb &fastboot , google usb driver, with usb debugging on..Adb works, but for example fastboot reboot-bootloader..Only switches off the device, it doesn't boot up in any mode...Tried button combinations but only recovery can show up.So no commands work for fastboot plus starting fastboot with keys, looks impossible.Also in recovery there is no fastboot.In adb i can see all the commands, but everything what starts with fastboot, will give me only an waiting for device output..Also adb shell gives me root, rooted with kingroot..But same thing, goes off and no fastboot..And yes adb has permissions from kingroot.
Because adb works, i can not believe that fastboot would not work, i think myself its the tablet who first has to boot into it before a driver will work.But fastboot oem unlock or fastboot flashing unlock bootloader all are not working.But why it even doesn't start in any fastboot from command pff i cant understand that..
On the internet i see that even fastboot has an screen..Could it be locked or so?
Only weird thing besides that is this! If i put it off, plug in usb cable and charger!!Press vol up or power, battery shows up loading..And i see rockusb device in device manager win7.I can install adb or fastboot on top off rockusb device.But adb shows no server running.And adb devices gives this: 1234567890ABCDEF Device....Thinks its no fastboot but very weird.It only works this way when charger is inserted and battery is loading..
Besides that, rooting was also a pain ...Tried rk188 solution for rk3168, but double zero after 3 times booting..Looks rooted, but Su is not there and cant get installed.It always ends like that, with or without kingroot.And other ways the same, with emulator pushing su and removing kingroot..Doesn't allow Su to be installed properly.
Nothing looks logical for me at the moment. No fastboot, but seems flash ready in RK1.37 tools.Is there a way around fastboot to find out first if my loader is unlocked.
I don't wane brick it with an locked loader, so how to get further on from here or are these soc different from others?
Thanks for any help!:good:
Erik
I
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Any help would be greatly appreciated. I have been reading the forums for several days and believe that I am completely stuck. My son rooted his KFHDX 7" and was messing with different apks. It was still working at this point.
He thought it was running slow so he put it into recovery mode (power and volume up) and chose to reset it back to factory settings. Now it just boots to the Gray Kindle Fire bootup screen. Now the ADB is not enabled, he lost his root, and the device is locked.
When I plug the device into my computer (Windows 7) it won't even recognize it. Instead it gives me MTP Devices with error. I have loaded all of the device drives and Android SDK with no luck.
The only adb functions that appear to work are:
adb devices -------> This only gives me the generic serial# 01234569789ABCDE
adb reboot -------> This will reboot the kindle but it won't go past the gray logo
adb reboot-bootloader -------> This will put me into fastboot mode
adb kill-server
adb start-server -------> This will restart the ports but has not affect on the other commands
In fastboot mode I am to access all of the normal commands:
fastboot devices -------> This only gives me my actual serial#
fastboot reboot
fastboot oem unlock -------> It says it is unlocked but it is still locked
fastboot oem lock
However I can't use the following commands since it says my device is locked:
fastboot -i 0x1949 oem device-info
fastboot flash recovery twrp-2.8.x.x-xxx.img
fastboot boot twrp-2.8.x.x-xxx.img
I tried the 1-Click automated file and it got me all the way through until it asked me to enable the ADB debugging which I couldn't do since I am stuck at the boot screen. And I can't use a tool kit to fix it since I can't downgrade to a lower release.
Therefore I can not unlock my bootloader without downgrading which is impossible without a working system and functioning recovery. I can't root my devices without ADB enabled. And I can not flash a new working ROM due to the locked bootloader. Did I miss anything or is there still something I can do?
Please help, I am trying to get this working before Christmas.
Thanks.
DadSteveo said:
Any help would be greatly appreciated. I have been reading the forums for several days and believe that I am completely stuck. My son rooted his KFHDX 7" and was messing with different apks. It was still working at this point.
He thought it was running slow so he put it into recovery mode (power and volume up) and chose to reset it back to factory settings. Now it just boots to the Gray Kindle Fire bootup screen. Now the ADB is not enabled, he lost his root, and the device is locked.
When I plug the device into my computer (Windows 7) it won't even recognize it. Instead it gives me MTP Devices with error. I have loaded all of the device drives and Android SDK with no luck.
The only adb functions that appear to work are:
adb devices -------> This only gives me the generic serial# 01234569789ABCDE
adb reboot -------> This will reboot the kindle but it won't go past the gray logo
adb reboot-bootloader -------> This will put me into fastboot mode
adb kill-server
adb start-server -------> This will restart the ports but has not affect on the other commands
In fastboot mode I am to access all of the normal commands:
fastboot devices -------> This only gives me my actual serial#
fastboot reboot
fastboot oem unlock -------> It says it is unlocked but it is still locked
fastboot oem lock
However I can't use the following commands since it says my device is locked:
fastboot -i 0x1949 oem device-info
fastboot flash recovery twrp-2.8.x.x-xxx.img
fastboot boot twrp-2.8.x.x-xxx.img
I tried the 1-Click automated file and it got me all the way through until it asked me to enable the ADB debugging which I couldn't do since I am stuck at the boot screen. And I can't use a tool kit to fix it since I can't downgrade to a lower release.
Therefore I can not unlock my bootloader without downgrading which is impossible without a working system and functioning recovery. I can't root my devices without ADB enabled. And I can not flash a new working ROM due to the locked bootloader. Did I miss anything or is there still something I can do?
Please help, I am trying to get this working before Christmas.
Thanks.
Click to expand...
Click to collapse
Unfortunately, there is no known recovery from this type of failure. I don't say that casually and wish there was a solution. The symptoms you report are both common and tell tale. The device is bricked.
I just replaced the motherboard on my hdx 8.9
It worked, I had to order a daughterboard also.
Total cost around $50 from where I got them.
Worth looking into. Watch teardown videos on YouTube and get the right tools.
Sent from my SM-N920T using Tapatalk
Too late?
DadSteveo said:
In fastboot mode I am to access all of the normal commands:
fastboot devices -------> This only gives me my actual serial#
fastboot reboot
fastboot oem unlock -------> It says it is unlocked but it is still locked
fastboot oem lock
And I can not flash a new working ROM due to the locked bootloader. Did I miss anything or is there still something I can do?
Click to expand...
Click to collapse
Since fastboot appears to respond as expected on your device,
I'd be **very** interested in testing my long-standing theory
that 'fastboot update' __might__ work even on locked devices.
The "gotcha" is that we'd need to prepare the right package for
your Kindle. So, I gather it's an HDX 7" (3rd Gen?), i.e. "thor" model.
Do you remember what version of Fire OS you had installed?
Hello,
A friend of my asked me to install a new version on his iOcean X8 Mini.
After a few minutes into the process, I discovered that I couldn't modify anything at all.
Problems start occuring when I enter Fastboot via ADB (I power up the phone, connect it to PC, give it permission to use Android USB Debugging, then via 'adb rebeoot fastboot' I enter the Fastboot menu). Every command I enter here returns 3 dots just doing nothing. My command prompt is unusable after entering a command (for example 'fastboot oem unlock').
I've tried to push a ROM via ADB but this isn't working as well since it returns something like 'no permission' when trying to install, but I figured this was due to the locked bootloader.
Searched all over the internet for solutions, but so far nothing has really worked. What I somehow did mange to do is root the device (don't know if it was by default, I assume not), via RootGenius.
Anybody got any experience with this, and perhaps know some steps I can undertake to indeed unlock the bootloader of this phone?
Thanks in advance!
I ported TWRP using Android kitchen to flash to my device (Coolpad 801es) since there isn't an official version. For some reason, I can't seem to get fastboot to play nice with my phone (see my earlier post) so I used flashify. On reboot i'm stuck in a bootloop. I did have the foresight to back up my stock recovery with flashify and transfer it to my PC first, in case something went wrong. Now, I can't boot into recovery at all and ADB isn't working since the phone isn't being recognized by my PC when I plug it in. I just want to flash the stock recovery back and fix this. I can get into fastboot, and the PC does recognize the phone in fastboot, but when I try any commands it just hangs at waiting for device. I've googled but every solution i've seen for fixing a bootloop tells you to boot into recovery to do so.
Can someone please help me out?
UPDATE:
Upon further research, I discovered the reason fastboot commands weren't working is because my phone apparently isn't whitelisted in the fastboot exe. However, if I type Fastboot followed by -i 0x1ebf the commands seem to work. Using this method, fastboot devices lists my phone and fastboot reboot reboots the phone.
I think i'm on the right track, but when I try "Fastboot -i 0x1ebf flash recovery (path to recovery.img)" the terminal shows "sending 'recovery' (10240kb)..." and nothing else. No progress indicator, and i've waited 10 minutes for it to complete which should be more than enough time to flash a 10 meg file, but there's no change it just sits there. Like I said, I think i'm on the right track but I could REALLY use some help. I can't be the first person on here with this problem. Can someone, anyone, PLEASE help me.
So, more Googling would indicate that either i'm not using the correct USB port, or that my bootloader is locked. I have tried all the USB ports on my PC (front and back) as well as two different cables, no joy. As far as the bootloader being locked, the phone is rooted which I thought meant that the bootloader is unlocked as that is part of the rooting process. I try "Fastboot oem unlock" to check but I just get "failed remote no such command unlock" and there is no OEM option under developer options on this phone. I'm trying to piece this together but I could really use some help.
i have a linsay 7-xhd that got stuck after using the above command have no adb access from the boot screen and it will not boot into recovery. any ideas to get to recovery or fix? there is no roms firmware or anything available for this device?
I let the battery drain all the way (thankfully the battery isn't great and wasn't fully charged) and i was able to boot into the os. i still wish to access the bootloader any ideas why it would cause a boot loop?
This won't really help, but next time make sure the device is recognized first. That way you know the computer sees it. I start a terminal session with adb devices command first. If nothing comes up( if the phone's on, I get the serial number, if it's on twrp, I get the dev name as in the one in build prop) adb doesn't see it. I go from there, and do what I am trying to do, then use adb reboot bootloader to reboot. The good thing about using twrp is that internal storage shows up, plus sdcard access is shown on the computer, when adb is working right. I don't use windows though, seems that things work better with ubuntu.
Long story short: installed custom rom, went into TWRP bootloop, tried to flash back to stock ended with bootloop.
Is there a way to enter into fastboot? So I can at least flash TWRP back.
Currently it's booting, displaying the boot screen with the orange state warning and almost immediately rebooting
Fastboot on Android side gets activated by bootloader. Hence you should be able to run Fastboot commands.
To test this you run on Windows computer
Code:
fastboot devices
jwoegerbauer said:
Fastboot on Android side gets activated by bootloader. Hence you should be able to run Fastboot commands.
To test this you run on Windows computer
Code:
fastboot devices
Click to expand...
Click to collapse
Tried to spam sudo fastboot devices on linux, but to no avail.
Trying on windows as soon as I find the drivers
Installed the drivers from here and rebooted: https://gsmmobiledriver.com/umidigi-f1
Spammed fastboot.exe devices in admin power shell, but again no output at all
While it doesn't respond to fastboot, I noticed that, while booting, lsusb displays the preloader:
Bus 003 Device 010: ID 0e8d:2000 MediaTek Inc. MT65xx Preloader
Is there a way to interact with it?
It seems it's possible to unbrick the phone with SP Flash Tool, I can't find a guide or how to do it however...
Edit: all guides I had foudn require to device to be powered off. Given that my case is a bootloop, I will try to wait until the battery has dried up
Ended up following this: https://forum.xda-developers.com/t/stuck-in-a-boot-loop-and-cant-access-recovery-mode.3818742/
Standard procedure with SPFlashTool: no preloader, download all else. Results in a "PMT changed for the rom; it must be downloaded", so I probably have a faulty firmware copy
Edit: wrong firmware, my phone uses the global instead of the EU one for some reason