How can I downgrade the firmware? - MTCD Android Head Units Q&A

How can I downgrade the firmware?
I'm using hct2.30300811.112431 for PX6 android10, but I've applied hct2.20201217.160929.
I want to get it back,
"can't install this package"
"can't downgrade"
It has become. Is there a way for me to downgrade?

denjin-m said:
How can I downgrade the firmware?
I'm using hct2.30300811.112431 for PX6 android10, but I've applied hct2.20201217.160929.
I want to get it back,
"can't install this package"
"can't downgrade"
It has become. Is there a way for me to downgrade?
Click to expand...
Click to collapse
Bootable Sdcard or OTG.

marchnz said:
Bootable Sdcard
Click to expand...
Click to collapse
How should I create a bootable SD card?
Best.

My Head Unit is
AA0602B (vanku.tech)
I'm really in trouble.
PSE tell me how to go downgrade.

I have SD_Firmware_Tool.exe, but I can't make an SD to boot.

Related

cyanogenmod help

I am trying to install a new rom on my nexus s. After installing the file from sd card it says verifying update package and then installation aborted. I try two different downloads from the cyanogenmod crespo. They both did the same thing. Help please
tdoughone said:
I am trying to install a new rom on my nexus s. After installing the file from sd card it says verifying update package and then installation aborted. I try two different downloads from the cyanogenmod crespo. They both did the same thing. Help please
Click to expand...
Click to collapse
Write down the full error.
polobunny said:
Write down the full error.
Click to expand...
Click to collapse
verifying update package and then installation aborted
This happens when I install update from sd card. When I first rooted it it was in rom manger. I duno how to get back to that. I just go to recovery and it is the standard way. I downloaded rom manager and it says error. It is rroted but how do I turn on super user?
tdoughone said:
verifying update package and then installation aborted
This happens when I install update from sd card. When I first rooted it it was in rom manger. I duno how to get back to that. I just go to recovery and it is the standard way. I downloaded rom manager and it says error. It is rroted but how do I turn on super user?
Click to expand...
Click to collapse
There's something after installation aborted, usually a status code error or similar. That's needed.
What is the filename of what you are trying to install?
the bootloader shows locked again I will try this again later. Thanks for trying to help me
polobunny said:
There's something after installation aborted, usually a status code error or similar. That's needed.
What is the filename of what you are trying to install?
Click to expand...
Click to collapse
I started all over and the it states status 7
tdoughone said:
I started all over and the it states status 7
Click to expand...
Click to collapse
What file are you trying to install? I need the exact filename.
Do you have a i9020a? i9020t? i9023? SPH-D720?
Status 7 usually shows that it fails some asserts, so you're likely trying to flash a bad rom for your device.
polobunny said:
What file are you trying to install? I need the exact filename.
Do you have a i9020a? i9020t? i9023? SPH-D720?
Status 7 usually shows that it fails some asserts, so you're likely trying to flash a bad rom for your device.
Click to expand...
Click to collapse
I was trying to install a nightly crespo rom. The phone is now bricked.
polobunny said:
What file are you trying to install? I need the exact filename.
Do you have a i9020a? i9020t? i9023? SPH-D720?
Status 7 usually shows that it fails some asserts, so you're likely trying to flash a bad rom for your device.
Click to expand...
Click to collapse
It is the i9020t
tdoughone said:
I was trying to install a nightly crespo rom. The phone is now bricked.
Click to expand...
Click to collapse
tdoughone said:
It is the i9020t
Click to expand...
Click to collapse
You can't brick a crespo, it lives through pretty much anything. I asked for the exact file name of the file you were trying to flash. We can't help you if you aren't answering.
polobunny said:
You can't brick a crespo, it lives through pretty much anything. I asked for the exact file name of the file you were trying to flash. We can't help you if you aren't answering.
Click to expand...
Click to collapse
cm-10.2-20130925-NIGHTLY-crespo.zip
I tried to install that file after using sabra-root-toolkit-v3.5.zip

Honor 8 rollback brick (vendor clust partition missing)

Hi,
i tried some ROMS out, but since I couldn't get my banking apps to work I wanted to rollback to Stock ROM.
I"ve made a backup but I couldnt install it with restore in TWRP.
Now I basically bricked and I am missing 3 partitions. Is there a way to flash the partitions back? Could I can still acces TWRP and fastboot.
I thought that I could flash the boot.img from the stock backup via fastboot, but i dunno how to extract the boot.img
Anyway I can fix this?
Also pushing the dload files onto the sd might work, but I dunno how to acces the sd via twrp.
Waidowai said:
Hi,
i tried some ROMS out, but since I couldn't get my banking apps to work I wanted to rollback to Stock ROM.
I"ve made a backup but I couldnt install it with restore in TWRP.
Now I basically bricked and I am missing 3 partitions. Is there a way to flash the partitions back? Could I can still acces TWRP and fastboot.
I thought that I could flash the boot.img from the stock backup via fastboot, but i dunno how to extract the boot.img
Anyway I can fix this?
Also pushing the dload files onto the sd might work, but I dunno how to acces the sd via twrp.
Click to expand...
Click to collapse
first, please provide basic information of your device
venugopalu007 said:
first, please provide basic information of your device
Click to expand...
Click to collapse
Well the latest FW that I flashed was the 360.
My device is the european model l09 with 32gb of storage.
What other informations do u guys need?
Waidowai said:
Well the latest FW that I flashed was the 360.
My device is the european model l09 with 32gb of storage.
What other informations do u guys need?
Click to expand...
Click to collapse
That's all we need to know, if you can, reflash B360 using Dload
PalakMi said:
That's all we need to know, if you can, reflash B360 using Dload
Click to expand...
Click to collapse
Whenever I try to flash with Dload iam getting the error that I have the wrong package. Also on B360 I can not upgrade to B380 since it says its the wrong package (although that is my least worry right now )
Waidowai said:
Whenever I try to flash with Dload iam getting the error that I have the wrong package. Also on B360 I can not upgrade to B380 since it says its the wrong package (although that is my least worry right now )
Click to expand...
Click to collapse
How about a rollback package?!
PalakMi said:
How about a rollback package?!
Click to expand...
Click to collapse
THIS!!
Well I manged to get to 131 now.
But I can just update to 360.. Is there anyway I can get to 380 from 360?
I tried to flash 380 from 131. But then bluetooth nfc and the smartkey stops working
This is really a bummer.
__________
TLDR:
How do I get from 360 to 380. I am getting the wrong package error.
Waidowai said:
THIS!!
Well I manged to get to 131 now.
But I can just update to 360.. Is there anyway I can get to 380 from 360?
I tried to flash 380 from 131. But then bluetooth nfc and the smartkey stops working
This is really a bummer.
__________
TLDR:
How do I get from 360 to 380. I am getting the wrong package error.
Click to expand...
Click to collapse
Go to software updater and choose to download full package which should update to B380. If it doesn't work, force it using Firmware Finder app from Play Store.
Anonshe said:
Go to software updater and choose to download full package which should update to B380. If it doesn't work, force it using Firmware Finder app from Play Store.
Click to expand...
Click to collapse
Well I tried that When I use Firmware Finder then my Stock Update Setting disapperes oO. Men iam so screwed (
That's a huge bummer
Waidowai said:
Well I tried that When I use Firmware Finder then my Stock Update Setting disapperes oO. Men iam so screwed (
Click to expand...
Click to collapse
ho man ...
venugopalu007 said:
ho man ...
Click to expand...
Click to collapse
Somehow through the night I managed to fix everything. Now I am on B389 which is the latest I suppose.
Took a couple dload rollbacks and flashing with TWRP but I am alright now.
Thread can be closed.
Waidowai said:
Somehow through the night I managed to fix everything. Now I am on B389 which is the latest I suppose.
Took a couple dload rollbacks and flashing with TWRP but I am alright now.
Thread can be closed.
Click to expand...
Click to collapse
sounds good

How can i get update to Nougat???Honor 8 FRD L19C636B130

Hi I tried many different firmware and always install stopped at 5% (software install failed! Incompatibility with current version) is there any way to install nougat?
Are you trying to install the OS via OTA?
My phone can't see OTA udate I don't know why. I downloaded it with firmware finder but result is always the same. I think my phone is locked for updates?
lukluki87 said:
My phone can't see OTA udate I don't know why. I downloaded it with firmware finder but result is always the same. I think my phone is locked for updates?
Click to expand...
Click to collapse
Model and build number plz. Will help as much as I can
Honor 8 frd-l19 C636B130
Thank you for any help
lukluki87 said:
Honor 8 frd-l19C636B130
Thank you for any help
Click to expand...
Click to collapse
http://hwmt.ru/hwmtsite/firmware-database/?firmware_model=frd-l19C636&firmware_page=0
Download the 380 zip n use dload.
Dload method quick guide in signature
and same "software install failed incompatibility with curren version". I tried B360 as well
lukluki87 said:
and same "software install failed incompatibility with curren version". I tried B360 as well
Click to expand...
Click to collapse
Let me check more bro. Will confirm as soon as get any idea on this. Sorry for trouble
Rommco05 said:
You try B360 wich is labeled with PV also u unzip zips before copied to dload folder?
Click to expand...
Click to collapse
Pv one would work with regular dload or via twrp? Just checking as haven't flash yet myself evee so woukd be handy for future
That one also doesn't work the same problem reached 5% and than "software instalation failed...."
I tried with regular dload.
Rommco05 said:
Both dload and twrp, no other firmwares isnt able to install over dload or twrp. Always must contains just 2 zips
Click to expand...
Click to collapse
Ok. Coz i tried fullOTA-MF file in dload and worked perfectly fine
Rommco05 said:
Try format sdcard and change file system (I don't remember which is right)
Click to expand...
Click to collapse
I formatted the card before update.. File system?I don't know which and where I find it?
Rommco05 said:
How many zips contains update and was Nougat?
Click to expand...
Click to collapse
Main zip had 4 and data zip 5 files for bln-L22 and worked fine. Posted in debranding guide aa well
Rommco05 said:
How many zips contains update and was Nougat?
---------- Post added at 21:10 ---------- Previous post was at 21:09 ----------
If formatting card in Windows try change to NTFS instead FAT32
Click to expand...
Click to collapse
I formatted to NTFS file and still nothing no idea
lukluki87 said:
I formatted to NTFS file and still nothing no idea
Click to expand...
Click to collapse
This format will not help. This is certainly different issue
Rommco05 said:
What about use Firmware Finder + Firmware Finder proxy (if u can boot to system)
Click to expand...
Click to collapse
I was trying it as well... Is possible that seller locked phone for updates?
Rommco05 said:
Hm I don't think so or I don't know. You try exactly this update?
Click to expand...
Click to collapse
Finally I got it!!! ?I tried again L19C636B360 Full OTA mpv and this time updated. Thank you very much!!
Rommco05 said:
Hm I don't think so or I don't know. You try exactly this update?
Click to expand...
Click to collapse
On a side note, why does this PV work and the other ones (MF) won't?
I've been facing the same issue that our friend here stated, but mine won't go beyond 360, and I see that there's 386 already!
valp88 said:
On a side note, why does this PV work and the other ones (MF) won't?
I've been facing the same issue that our friend here stated, but mine won't go beyond 360, and I see that there's 386 already!
Click to expand...
Click to collapse
Have you received OTA in past? If so you will get this also. PV works with twrp and fullOTA-MF works with stock.
To flash ota updates you must return 100% stock. Check your model, and
1) flash stock rom for your model via tprw & vendor.zip
2) flash stock recovery
3) flash stock boot.img
4) relock bootloader
5) put "ota update".zip in internal stoarge into download folder
6) turn off wifi, reboot and click on the notification that will appear
If update fail you have something to change because you are not stock.

help!! i accidentaly wiped system in twrp (honor8-frdl09 euro) what do i do? (solved)

help!! i accidentaly wiped system in twrp (honor8-frdl09 euro) what do i do ?? erecovery dosnt work (solved)
yunh said:
title
Click to expand...
Click to collapse
Next time, put your problem in the actual post and not in the title. Now onto your problem, what were you trying to do? You can't just "accidentally" wipe the system.
itisiryan said:
Next time, put your problem in the actual post and not in the title. Now onto your problem, what were you trying to do? You can't just "accidentally" wipe the system.
Click to expand...
Click to collapse
i was trying to format but i deleted the os by mistake how do i bring it back erecovery dosn't work
yunh said:
i was trying to format but i deleted the os by mistake how do i bring it back erecovery dosn't work
Click to expand...
Click to collapse
What firmware was your phone on, did you have an update ready to install?
yunh said:
i was trying to format but i deleted the os by mistake how do i bring it back erecovery dosn't work
Click to expand...
Click to collapse
Download a full firmwaremfor your device. Put it in dload folder inside SD card. Then press volume down, volume up and power button until it lights up. Flashing will start.
sonicscrewup said:
What firmware was your phone on, did you have an update ready to install?
Click to expand...
Click to collapse
yes i had i think it was something b389
itisiryan said:
Download a full firmwaremfor your device. Put it in dload folder inside SD card. Then press volume down, volume up and power button until it lights up. Flashing will start.
Click to expand...
Click to collapse
do you have a link to the frimware i need my phone is a euro model i orderd from amazon germany
yunh said:
do you have a link to the frimware i need my phone is a euro model i orderd from amazon germany
Click to expand...
Click to collapse
What is your cust version? Do you remember?
itisiryan said:
What is your cust version? Do you remember?
Click to expand...
Click to collapse
no can you flash a new one?
sonicscrewup said:
What firmware was your phone on, did you have an update ready to install?
Click to expand...
Click to collapse
Okay, I might be able to help. If you can get into twrp you need to do that now and see if you can find the update package, you'll be attempting to extract the recovery from there.
If you cant get into twrp, plug into the computer, place the rollback package into a dload folder on the root of an sd card and try the three finger update.
Installing twrp screws with regular erecovery and i've gotten back from this exact situation, I'll do my best to walk you through what you need to do.
itisiryan said:
Download a full firmwaremfor your device. Put it in dload folder inside SD card. Then press volume down, volume up and power button until it lights up. Flashing will start.
Click to expand...
Click to collapse
i still have an unlocked bootloader if i install twrp and flash ressurection remix rom will it work?
yunh said:
i still have an unlocked bootloader if i install twrp and flash ressurection remix rom will it work?
Click to expand...
Click to collapse
It should work too.
sonicscrewup said:
Okay, I might be able to help. If you can get into twrp you need to do that now and see if you can find the update package, you'll be attempting to extract the recovery from there.
If you cant get into twrp, plug into the computer, place the rollback package into a dload folder on the root of an sd card and try the three finger update.
Installing twrp screws with regular erecovery and i've gotten back from this exact situation, I'll do my best to walk you through what you need to do.
Click to expand...
Click to collapse
i can get into twrp 3.0.3-0 but not 3.1
That's fine, start going through your file system and see if you can find the update package or if you have a twrp backup that's the easiest way to go
sonicscrewup said:
Okay, I might be able to help. If you can get into twrp you need to do that now and see if you can find the update package, you'll be attempting to extract the recovery from there.
If you cant get into twrp, plug into the computer, place the rollback package into a dload folder on the root of an sd card and try the three finger update.
Installing twrp screws with regular erecovery and i've gotten back from this exact situation, I'll do my best to walk you through what you need to do.
Click to expand...
Click to collapse
i dont mind a custom rom but when i try to install RR 5.8.4 i get a black screen and 5.8.3 gives me error 7
Maybe try lineage os? That's what I'm on currently
sonicscrewup said:
Okay, I might be able to help. If you can get into twrp you need to do that now and see if you can find the update package, you'll be attempting to extract the recovery from there.
If you cant get into twrp, plug into the computer, place the rollback package into a dload folder on the root of an sd card and try the three finger update.
Installing twrp screws with regular erecovery and i've gotten back from this exact situation, I'll do my best to walk you through what you need to do.
Click to expand...
Click to collapse
sonicscrewup said:
Maybe try lineage os? That's what I'm on currently
Click to expand...
Click to collapse
does the camera work?
sonicscrewup said:
Okay, I might be able to help. If you can get into twrp you need to do that now and see if you can find the update package, you'll be attempting to extract the recovery from there.
If you cant get into twrp, plug into the computer, place the rollback package into a dload folder on the root of an sd card and try the three finger update.
Installing twrp screws with regular erecovery and i've gotten back from this exact situation, I'll do my best to walk you through what you need to do.
Click to expand...
Click to collapse
sonicscrewup said:
Maybe try lineage os? That's what I'm on currently
Click to expand...
Click to collapse
is there any way to go back to emui 5?
sonicscrewup said:
Okay, I might be able to help. If you can get into twrp you need to do that now and see if you can find the update package, you'll be attempting to extract the recovery from there.
If you cant get into twrp, plug into the computer, place the rollback package into a dload folder on the root of an sd card and try the three finger update.
Installing twrp screws with regular erecovery and i've gotten back from this exact situation, I'll do my best to walk you through what you need to do.
Click to expand...
Click to collapse
sonicscrewup said:
Maybe try lineage os? That's what I'm on currently
Click to expand...
Click to collapse
is there any way to go back to emui 5?
yunh said:
is there any way to go back to emui 5?
Click to expand...
Click to collapse
No dual camera support as far as I know,but the color one works. And yes, by flashing the regular recovery and doing the three finger update

Stock on System 8.0.0.42(01JD)

Hello guys
I flashed a system.img which brought me to this weared Build-number.. I think I also destroyed my Boot partition, cause my phone do not get recognice by my pc and because of that I can't go back to the BL..
If somebody has any idea, write a comment and I'm gonna look if it works
ThePrinoob said:
Hello guys
I flashed a system.img which brought me to this weared Build-number.. I think I also destroyed my Boot partition, cause my phone do not get recognice by my pc and because of that I can't go back to the BL..
If somebody has any idea, write a comment and I'm gonna look if it works
Click to expand...
Click to collapse
Try using dload method and flash the full stock update.app file
shashank1320 said:
Try using dload method and flash the full stock update.app file
Click to expand...
Click to collapse
Which UPDATE.app should I try?
ThePrinoob said:
Which UPDATE.app should I try?
Click to expand...
Click to collapse
The one you had earlier. Check on firmware finder. Download the update.zip file.
Extract amd use it. Dload guide is given in my signature. Personally I have not used dload on oreo so cant be 100% sure but have used it more than 100 times on KK, LP, MM, and Nougat. But i saw a post mentioned this method for going back to stock on v10. Can give it a shot, no harm, dload doesn't break anything.
shashank1320 said:
The one you had earlier. Check on firmware finder. Download the update.zip file.
Extract amd use it. Dload guide is given in my signature. Personally I have not used dload on oreo so cant be 100% sure but have used it more than 100 times on KK, LP, MM, and Nougat. But i saw a post mentioned this method for going back to stock on v10. Can give it a shot, no harm, dload doesn't break anything.
Click to expand...
Click to collapse
Okey I will try. But I don't now which Version I should try, cause I used ComicOS before and then I flashed this system.img..
ThePrinoob said:
Okey I will try. But I don't now which Version I should try, cause I used ComicOS before and then I flashed this system.img..
Click to expand...
Click to collapse
The one you had before the cosmis or you cam even try the latest available for your model.
shashank1320 said:
The one you had before the cosmis or you cam even try the latest available for your model.
Click to expand...
Click to collapse
Thank you, Im now downloading through in-App proxy
ThePrinoob said:
Thank you, Im now downloading through in-App proxy
Click to expand...
Click to collapse
I prefer to download on pc and save it unless i am pushing update to Updater for OTA
shashank1320 said:
I prefer to download on pc and save it unless i am pushing update to Updater for OTA
Click to expand...
Click to collapse
At the moment i'm not at home, so I can't acces a PC
shashank1320 said:
I prefer to download on pc and save it unless i am pushing update to Updater for OTA
Click to expand...
Click to collapse
I tryed 140 and 160b both gave me: System install failed!
ThePrinoob said:
I tryed 140 and 160b both gave me: System install failed!
Click to expand...
Click to collapse
Can you try installing any custom ROM cosmic or other and then try to come back again but install with caution this time.
shashank1320 said:
Cam you try installing any custom ROM cosmic or other and then try to come back again but install with caution this time.
Click to expand...
Click to collapse
How should I do this? I can't acces the BL and I installed stock recovery..
ThePrinoob said:
How should I do this? I can't acces the BL and I installed stock recovery..
Click to expand...
Click to collapse
You can't access fastboot? Difficult then. How about trying erecovery option to download the version and install
shashank1320 said:
You can't access fastboot? Difficult then. How about trying erecovery option to download the version and install
Click to expand...
Click to collapse
Yes, if I could I wouldnt ask I will try this when I have Wifi.
shashank1320 said:
You can't access fastboot? Difficult then. How about trying erecovery option to download the version and install
Click to expand...
Click to collapse
Got an Error message: Getting Package info failed
ThePrinoob said:
Got an Error message: Getting Package info failed
Click to expand...
Click to collapse
Bad luck. Sorry mate. Camt help much then. May be you need to live with this build number or see if any future update fix it.
shashank1320 said:
Bad luck. Sorry mate. Camt help much then. May be you need to live with this build number or see if any future update fix it.
Click to expand...
Click to collapse
Okey, so i'm gonna try any other version.. Thank you mate!
shashank1320 said:
Bad luck. Sorry mate. Camt help much then. May be you need to live with this build number or see if any future update fix it.
Click to expand...
Click to collapse
What again is update_data_full_public? xD
I have exactly the same problem. No ideas how to fix it?
ThePrinoob said:
What again is update_data_full_public? xD
Click to expand...
Click to collapse
Havent tried ever so cant comment.

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