unlock bootloader error cat s41 - Upgrading, Modifying and Unlocking

hi to everyone im new in this forum
i had some problem whit the unlock of this phone.
i mailed caterpillar support and they dont help me
i receive the same error on every fastboot command (failed remote:unknown command)
i allow usb debugging and oem unlock but i cant do notting the fastboot mode seems to be useless in this phone
i would unlock my bootloader to install magisk but i cant
someone can help me to solve this issue?
the phone is mtk 6757 based

anyone can help me?

I am searching the net since 2 weeks now for a valid root for the device with no luck at all. I have tried all kind of APK root and PC root and none worked.

Related

[Q] Rumrunner Help

Some background: my phone is htcdev unlocked and running TWRP
I have tried to get support from the two irc channels listed in the Rumrunners post, maybe I just have bad timing or something but I wasnt able to talk to anyone in there.
I have tried running the exploit on both Ubuntu and Win 7 but it fails at the same place "Waiting for device"
Code:
Checking for updates......
Test 1: Rebooting into bootloader
Waiting for fastboot (8/120)
Waiting
Test 2: Booting device
Waiting for ADB (28/120)
Device detected.....................
[--------------------------------------
Rebooting into bootloader (again)
Waiting for fastboot (8/120)
Waiting for ADB (30/120)
Waiting for device
Waiting for device
ERROR: run rumrunner again.
Press ENTER to exit
It always fails at "Waiting for device". It did get past that and go through 10 pourings but that ended with a WTF error, I have tried to recreate what I did to get that far but so far I havent had any success.
If anyone could help me get this exploit working I would greatly appreciate it.
Wozzie said:
Some background: my phone is htcdev unlocked and running TWRP
I have tried to get support from the two irc channels listed in the Rumrunners post, maybe I just have bad timing or something but I wasnt able to talk to anyone in there.
I have tried running the exploit on both Ubuntu and Win 7 but it fails at the same place "Waiting for device"
Code:
Checking for updates......
Test 1: Rebooting into bootloader
Waiting for fastboot (8/120)
Waiting
Test 2: Booting device
Waiting for ADB (28/120)
Device detected.....................
[--------------------------------------
Rebooting into bootloader (again)
Waiting for fastboot (8/120)
Waiting for ADB (30/120)
Waiting for device
Waiting for device
ERROR: run rumrunner again.
Press ENTER to exit
It always fails at "Waiting for device". It did get past that and go through 10 pourings but that ended with a WTF error, I have tried to recreate what I did to get that far but so far I havent had any success.
If anyone could help me get this exploit working I would greatly appreciate it.
Click to expand...
Click to collapse
I was just able to get S off via the method but i wasnt HTCdev unlocked. i'd read through the main Forums with the links for S off. I'm pretty sure you need to be on stock rom and have your bootloader relocked (was reading every post trying to figure out my own issues)
http://forum.xda-developers.com/showthread.php?t=2473644
It's in their just go to do some reading

[UNLOCK] [H815] Fastboot won't recognize my LG G4 in fastboot mode...

First I must say, I searched all over the internet for answer to this problem. None of the topics I read had matched my problem.
I want to unlock my bootloader so I can flash custom recovery and get root access.
When I want to access the bootloader ("adb reboot bootloader"), in my phone all goes fine (I see on my phone the Fastboot instructions, etc). The problem is in my computer that fastboot won't recognise my phone anymore. When I want to get the device-id, fastboot is stuck on "waiting for all devices". When I want to see the list of devices, ("fastboot devices"), I get nothing, wether my phone is on bootloader mode or not.
I installed all the LG drivers, including the ADB one. I am in USB debugging mode, and I disabled OEM protection.
Android version is Lollipop.
I need help on this matter, thanks in advance.
notrium dweller said:
First I must say, I searched all over the internet for answer to this problem. None of the topics I read had matched my problem.
I want to unlock my bootloader so I can flash custom recovery and get root access.
When I want to access the bootloader ("adb reboot bootloader"), in my phone all goes fine (I see on my phone the Fastboot instructions, etc). The problem is in my computer that fastboot won't recognise my phone anymore. When I want to get the device-id, fastboot is stuck on "waiting for all devices". When I want to see the list of devices, ("fastboot devices"), I get nothing, wether my phone is on bootloader mode or not.
I installed all the LG drivers, including the ADB one. I am in USB debugging mode, and I disabled OEM protection.
Android version is Lollipop.
I need help on this matter, thanks in advance.
Click to expand...
Click to collapse
not all phones can be unlocked.. search for g4 list of bootloader unlock youll see the list if yours isnt there you cant . only root 5.1 no twrp.
raptorddd said:
not all phones can be unlocked.. search for g4 list of bootloader unlock youll see the list if yours isnt there you cant . only root 5.1 no twrp.
Click to expand...
Click to collapse
I know mine can be unlocked. I actually can get to the bootloader via ADB. The problem is that fastboot won't recognise my phone afterwards. (I believe it's the european version of the H815 model, and according to one-click-root app, my phone can be safely rooted. Also my Lollipop version is 5.1.)
There are other few issues also:
Fastboot won't recognise my phone, even if the phone is not in bootloader mode.
Windows will recognise all of the LG related drivers including the ADB related driver, while the phone is powered on normally.
However, it fails to do so, in bootloader mode. I see non working driver in Windows 7 Device Manager, under "Other Devices" by the name "Android" with yellow exclamation mark. Nothing else.
Still looking for advice...
notrium dweller said:
I know mine can be unlocked. I actually can get to the bootloader via ADB. The problem is that fastboot won't recognise my phone afterwards. (I believe it's the european version of the H815 model, and according to one-click-root app, my phone can be safely rooted. Also my Lollipop version is 5.1.)
There are other few issues also:
Fastboot won't recognise my phone, even if the phone is not in bootloader mode.
Windows will recognise all of the LG related drivers including the ADB related driver, while the phone is powered on normally.
However, it fails to do so, in bootloader mode. I see non working driver in Windows 7 Device Manager, under "Other Devices" by the name "Android" with yellow exclamation mark. Nothing else.
Still looking for advice...
Click to expand...
Click to collapse
am sorry i cant help ive nver unlocked mine..
Still looking for suggestions, people...
I have the same problem, adb detects my phone but fastboot does not. Same Phone btw
Still no solution until now ? I have the same problems
My device is H815
Hi !
I have had this problem too...solved with strong battle to understand myself...
My solution : when you have installed driver ,when your phone go to fastboot mode and the pc don't want to reconize the phone : on the pc on windows go to harware manager (config panel) and you can see in theory "android" with a "?" ==> you have to install manually the driver by searching somewhere on the harware list "android adb interface " (i don't remember where it is) ==> your phone wil be reconized ! And you will have the 2 lines of ID on the adb comand interface....and follow the tutorial...
I have read hundreds of issues with driver problems when it comes to windows.
Please try Linux instead. There are live distributions like Ubuntu available. Install it on USB stick and start from there.
No driver issues anymore. Just works.
.
@steadfasterX it need some knowledge for to use Linux OS for adb thingsv (unlock bootloader ,instal TWRP,rom,apps...etc...) ? maybe you can do a small tutorial for to help ?
For windows i have found these pictures for an eventual help (see ZIP on attach file)
@Loulou-13 , now i can see my device-id - solved -
but now have another problems, my imei is not match with my device-id ...
my device is H815
yes...i know i have sent an answer too late ... but my solution is one of this problem and eventualy can be useful for other people.
for your new problem ,what happen ? .......have you enter the corect number ,without space or other ?
Loulou-13 said:
@steadfasterX it need some knowledge for to use Linux OS for adb thingsv (unlock bootloader ,instal TWRP,rom,apps...etc...) ? maybe you can do a small tutorial for to help ?
For windows i have found these pictures for an eventual help (see ZIP on attach file)
Click to expand...
Click to collapse
Well there are hundreds of guides out there just use google...
adb and fastboot working the same way under Linux so there is no need to have a specific guide for linux.
I haven't tested that guide here but it looks very good as a starting point:
http://forum.xda-developers.com/showpost.php?p=44739402&postcount=1
As said there are other maybe better guides but Google will tell you.
.
@steadfasterX thank for your link ,it's useful for people who have problem and read this thread
It's not for me .... i have my bootliader unlocked ,twrp...( and this fabulous Imperium MM rom !!!! )

[Brick] Zenfone 2 ZE551ML 4GB/32GB

Hello,
I've bricked my phone and now it just turns on to bootloader, all options in bootloader except turn off just loops it back to bootloader where it says "continue the fastboot process".
I've download the xFSTK_ZE551ML but it won't install the moorefield driver it detect it for only a few seconds and then change to android-phone driver, i believe moorefield doesn't work on bootloader but i can get the phone to hang on something else.
I also can't acess via ADB, when i type adb devices, no device is found.
Also tried the Asus FlashTool, but the raw files i tried (WW_ZE551ML_2.15.40.13_20150506.RAW) didn't work, i believe because it's Android L and phone was on Android L.
I've searched alot but haven't found a solution, can someone point me in the right direction?
Thanks in advance.
What happens when you type "fastboot devices"?
Nothing happens with that command.
It's working now, after i tried several raw files, it worked with "WW_ZE551ML_2.20.40.194_20160713.raw".
I know it's sounds newbie since i've just oppened the thread, but it literaly spend all day yesterday following guides and installing stuff on my pc, anyway glad it's apparently solved.
Anyone stuck on bootloader like i was that can't use xFSTK_ZE551ML, install the "WW_ZE55t1ML_2.20.40.194_20160713.raw" with flash tools, this was the only one that worked for me.
Just a warning to anyone who visits this thread --- If you have bootloader-- DO NOT use xFSTK -- xFSTK is to install a temp bootloader to bricked devices and only used if you have NO bootloader .

E6853 Can not unlock my bootloader

Hey guys,
i've got a problem with my Z5 Premium and I hope you can help me.
I just got it repaired (flex cable broke) and I wanted to give it a try unlocking the bootloader and later rooting it. Unfortunately it fails already at the first point.
My model is a regular Z5 Premium E6853. I am currently on version 32.4.A.1.5 / R1E.
Everytime I try to unlock my bootloader, it says "FAILED (remote: Command did not succeed)".
I'm starting to run out of ideas and I really want that bootloader unlocked.
Things I checked before:
I octuple-checked the IMEI and the unlock code. I also quadruple-checked my IMEI (phone box, settings, phone pad and service menu)
I did reinstall all drivers and I did install the fastboot drivers using the unsigned drivers (tried with the google drivers too)
I did try to use different USB cables (unfortunately the original one is broken, but I tried it with another Sony cable and some brand-new aftermarket cables)
I did enable OEM unlocking, ADB debugging and untrusted sources in the settings
I did check my bootloader version: it's 0.5
I did check that my bootloader is unlockable. The service menu says "Bootloader unlock allowed: Yes"
Are there any other things I need to do? Like having a valid sim card in the phone (not that I havent tried)?
I hope you guys can help me.
Best regards
Lyrex

Adb Not Detecting Device in Fasboot mode

Hello I need help with adb! Whenever I put adb reboot bootloader my phone goes into bootloader mode. Then when I type adb devices the phone suddenly disappears on adb. I am trying to unlock the bootloader with adb but I cant seem to get to the step to unlocking it. The phone goes into bootloader and my pc detects it but my adb does not see it. I need help because im trying to root and by doing that I need to unlock the bootloader. If anyone can help that would be the best.
So please if anyone knows how to do this it would mean the best to me.
I also tried updating the driver and all that
I tried different usb ports and different phones so anyone please help thanks!!

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