I wanted to update a Folio 100 that had a stock rom installed, a very old Android version (I think 2.1 or something).
I could not get the usb drivers installed properly in order to do the ADB commands in terminal like most tutorials say. Instead, I managed to install Clockwork loader by SD card.
Then with Clockwork I loaded different .zip files, e.g. cm-10-20121117-UNOFFICIAL-betelgeuse.zip, CM 10 (4.1.2) A5 [AhWz][RIP].zip.
I am not sure what to swipe before or after applying the zips from card. But after I loaded these zips I get a black screen at bootup, right after toshiba logo, I left it like that for over 5 minutes, it doesn't start.
Now if I return to boot recovery menu and I try to do a factory reset I get some errors about mounting, "cannot mount /cache/recovery/log (see attached image).
How can I boot again or return to stock ?
I cannot seem to get the USB drivers to load in windows btw (it never finds a proper device to be installed, just storage device), so if it just works to put a rom on card it would be nice.
Hello,
with CWM 3.0.0.5 you cannot install Cm 10. You have to use the appropriate CWM
try with this installation guide.
http://forum.xda-developers.com/showpost.php?p=31004271&postcount=9
Bye
Instaled Folio 100 usb drivers and booted in download mode
I managed to fix it and install a newer version, it is a huge performance and look improvement from the stock rom of Folio 100.
Just in case others have same problems... my probme(s) were that:
- I could not install the USB drivers for the folio 100.
"debug mode" was enabled but whenever I connected the device it just appeared as a flash storage and in device manager it said that it is already up to date. I used a tool called "usbdeview" to uninstall the device (seen as storage device); then on re-connecting usb cable, windows was looking for Nvidia Tegra drivers, so now I was able to provide proper drivers and it added an "android" device in windows device manager.
- then I realized I was doing some mistakes, I didn't knew that booting in download mode is different than booting in recovery mode, so it has two ways to start it, pressing power+vol_up quick (what I was doing), and more importantly clicking power once then vol_up 3 times, this enabled me to boot in download mode and now the commands in windows command prompt worked (fastboot erase recovery, etc).
From here everything worked as expected (with update steps from these threads), loaded some images, erased partitions, etc.
So it was USB drivers and booting in download mode that confused me.
*** Use at your own risk these instructions worked for me on MY tablets that is no guarantee they will work for you ***
This is for the ProScan PLT9650G(K-1G-8G) tablet. It has the RockChip RK3126 chipset. The one I am working with was purchased in Canada at the Atlantic Superstore. I will just briefly outline what I needed and had to do to root and install a TWRP recovery on the tablet. See the attachment for the recovery image. I will explain how to get the programs and general steps to make a full backup of the tablet before ever rooting the device. It is a little difficult, and not necessary, but like any backup can be helpful to have around.
Specifications:
The ProScan tablet has:
- Android Lollipop 5.1.1;
- Quad-core Processor, 1.2Mhz;
- 1 GB of DDR3 Memory;
- 8GB Flash Storage;
- 800x480 Screen Resolution.
Backup Overview:
1) Install USB drivers;
2) Put tablet in bootloader mode;
3) Read the different partitions.
Tools Needed:
1) Rockchip Driver Assistant v4.3;
2) Android Tool v2.3.
Detailed Instructions:
This tablet is a newer version and requires at least version 4.3 of the Rockchip Driver Assistant. The older versions (4.1) won't recognize the USB product id (310D) in bootloader mode.
Download the drivers unrar and run DriverInstall.exe. Select uninstall to clean any old drivers and then select install to install the newer ones. I've done this under Windows 7/8.1/10. Since I've done it so often and so many times with different driver version, I can't remember if the bootloader drivers require you install them with the driver signing turned off or not. The problem becomes that the bootloader drivers (under Windows 8+) will fail the driver signing authentication and won't install. The ADB and MTP drivers are signed and will install correctly, but when you boot the tablet in bootloader mode the device will be unrecognized by Windows. If you end up with this problem follow these instructions and then install the drivers.
After testing on a new machine under Windows 10 the drivers install fine. There is no need to boot with driver signing verification turned off.
To put the tablet in bootloader mode follow thes instructions:
1) Unplug tablet (both power and usb);
2) Turnoff tablet;
3) Press and hold the esc and power buttons at the same time;
4) Hold until the stock recovery menu comes up;
5) Press the esc button to go down to the menu item saying bootloader;
6) Press the power button to execute that menu item.
The screen will go blank. Plug the tablet into the computer and it will be recognized as a device type "Class for rockusb devices" in the Windows Device Manager.
Download the Android Tool from the link provided. The link gives a detailed description of how to backup all the partitions. I have included my parameters.txt file that I created. From the standpoint of undoing the root operation described below I believe only the recovery and system partition needs to be saved. But saving all the partitions never hurts. After you have followed the information in the link and saved the partitions you can move on to rooting the device.
One serious warning I have NOT been able to write anything to the device using the Android Tool. It always give me an error and won't even try. The backups we create can be used from within the tablet to restore it later if needed.
Custom Recovery Overview:
1) Root device;
2) Download the image file on the tablet;
3) Flash the recovery partition with the image file.
Tools Needed:
1) KingRoot;
2) Terminal Application;
Root Device:
The device rooted using KingRoot. Startup the tablet and go through the setup process. Download the apk from the link provided. The version used in testing was 4.6.2. You will need to allow "Unknown sources". The app will eventually give a button just try to root. This will eventually work and the tablet will be rooted.
Extract the img file from within the zip file below onto the internal drive. Make sure you put it in the Download directory. If you are doing this from the tablet it should go there if you move it over using the computer make sure you put it in that directory or change the command below to the proper directory.
Install a terminal emulator. Anyone will do, the one I chose is linked above. Open the emulator and type:
Code:
su
at the prompt. KingRoot should prompt you asking if you want to grant root privilege to the command prompt. Then type the command:
Code:
dd if=/sdcard/Download/TWRP_800x480_Unified.img of=/dev/block/rknand_recovery bs=4096
. That's it if you type:
Code:
reboot recovery
the tablet will reboot and TWRP should start up.
Notes:
If you saved the original system partition you can install it using TWRP and effectively unroot the device but keep the TWRP recovery. With the recovery image you can install it over the TWRP and return the tablet to its stock state. I'm giving these tablets to my kids and I wanted a way to return them to the state I bought them plus after I've personalized them for each of my kids I can make a backup in case they do something that messes them up.
This will also work for the PLT1065G but you need to use different recovery/parameters. The kernel is different (looks like a different touchscreen).
Thanks for this. Got one for $50 at Loblaws today. Will attempt rooting.
Got it for my 6 yr old
Edit: Fixed boot issue
protectivedad said:
*** Use at your own risk these instructions worked for me on MY tablets that is no guarantee they will work for you ***
This is for the ProScan PLT9650G(K-1G-8G) tablet. It has the RockChip RK3126 chipset. The one I am working with was purchased in Canada at the Atlantic Superstore. I will just briefly outline what I needed and had to do to root and install a TWRP recovery on the tablet. See the attachment for the recovery image. I will explain how to get the programs and general steps to make a full backup of the tablet before ever rooting the device. It is a little difficult, and not necessary, but like any backup can be helpful to have around.
Specifications:
The ProScan tablet has:
- Android Lollipop 5.1.1;
- Quad-core Processor, 1.2Mhz;
- 1 GB of DDR3 Memory;
- 8GB Flash Storage;
- 800x480 Screen Resolution.
Backup Overview:
1) Install USB drivers;
2) Put tablet in bootloader mode;
3) Read the different partitions.
Tools Needed:
1) Rockchip Driver Assistant v4.3;
2) Android Tool v2.3.
Detailed Instructions:
This tablet is a newer version and requires at least version 4.3 of the Rockchip Driver Assistant. The older versions (4.1) won't recognize the USB product id (310D) in bootloader mode.
Download the drivers unrar and run DriverInstall.exe. Select uninstall to clean any old drivers and then select install to install the newer ones. I've done this under Windows 7/8.1/10. Since I've done it so often and so many times with different driver version, I can't remember if the bootloader drivers require you install them with the driver signing turned off or not. The problem becomes that the bootloader drivers (under Windows 8+) will fail the driver signing authentication and won't install. The ADB and MTP drivers are signed and will install correctly, but when you boot the tablet in bootloader mode the device will be unrecognized by Windows. If you end up with this problem follow these instructions and then install the drivers.
After testing on a new machine under Windows 10 the drivers install fine. There is no need to boot with driver signing verification turned off.
To put the tablet in bootloader mode follow thes instructions:
1) Unplug tablet (both power and usb);
2) Turnoff tablet;
3) Press and hold the esc and power buttons at the same time;
4) Hold until the stock recovery menu comes up;
5) Press the esc button to go down to the menu item saying bootloader;
6) Press the power button to execute that menu item.
The screen will go blank. Plug the tablet into the computer and it will be recognized as a device type "Class for rockusb devices" in the Windows Device Manager.
Download the Android Tool from the link provided. The link gives a detailed description of how to backup all the partitions. I have included my parameters.txt file that I created. From the standpoint of undoing the root operation described below I believe only the recovery and system partition needs to be saved. But saving all the partitions never hurts. After you have followed the information in the link and saved the partitions you can move on to rooting the device.
One serious warning I have NOT been able to write anything to the device using the Android Tool. It always give me an error and won't even try. The backups we create can be used from within the tablet to restore it later if needed.
Custom Recovery Overview:
1) Root device;
2) Download the image file on the tablet;
3) Flash the recovery partition with the image file.
Tools Needed:
1) KingRoot;
2) Terminal Application;
Root Device:
The device rooted using KingRoot. Startup the tablet and go through the setup process. Download the apk from the link provided. The version used in testing was 4.6.2. You will need to allow "Unknown sources". The app will eventually give a button just try to root. This will eventually work and the tablet will be rooted.
Extract the img file from within the zip file below onto the internal drive. Make sure you put it in the Download directory. If you are doing this from the tablet it should go there if you move it over using the computer make sure you put it in that directory or change the command below to the proper directory.
Install a terminal emulator. Anyone will do, the one I chose is linked above. Open the emulator and type:
Code:
su
at the prompt. KingRoot should prompt you asking if you want to grant root privilege to the command prompt. Then type the command:
Code:
dd if=/sdcard/Download/TWRP_800x480_Unified.img of=/dev/block/rknand_recovery bs=4096
. That's it if you type:
Code:
reboot recovery
the tablet will reboot and TWRP should start up.
Notes:
If you saved the original system partition you can install it using TWRP and effectively unroot the device but keep the TWRP recovery. With the recovery image you can install it over the TWRP and return the tablet to its stock state. I'm giving these tablets to my kids and I wanted a way to return them to the state I bought them plus after I've personalized them for each of my kids I can make a backup in case they do something that messes them up.
Click to expand...
Click to collapse
It seems the boot issue is still there. Do you ever get this? It will get stuck at the PROSCAN logo display.
Friko said:
It seems the boot issue is still there. Do you ever get this? It will get stuck at the PROSCAN logo display.
Click to expand...
Click to collapse
I have had it stuck. It was when I was testing things. I can't remember what I did. I do know one time I left it for a day and I noticed the ProScan logo had a flashing cursor in it.
protectivedad said:
I have had it stuck. It was when I was testing things. I can't remember what I did. I do know one time I left it for a day and I noticed the ProScan logo had a flashing cursor in it.
Click to expand...
Click to collapse
I've been fiddling with it and it seems to be completely random. So I guess it's something we'll have to live with.
I bought it for my 6 year old who's dying to play Pokemon Go. The app runs okay on it. It's just the 'GPS' (or lack of a proper GPS chip) that's a bit slow/inaccurate
Hello I to bought this tablet in Canada I successfully rooted it but is there a reason why no other cameras can be downloaded or Music players or Instagram.
Is thee any chance to unbrick this tablet?
I have one stuck in the boot logo, hard reset wont solve, is there any flash file?
Hellooooo !!
anybody here ?
---------- Post added at 12:30 PM ---------- Previous post was at 12:26 PM ----------
ANYONE TEIED THIS FIRMWARE?
https://mega.nz/#!TVFX0CiZ!6CaGOSGZM47PQAd9KZDuKcPJaXsCL3n3JJQBtXPRHJo
is there any tool capable of flashing this tablet?
I have tried all known by me and all report a sudden error as sson as you try to write anything.
like OP said.
I have one stuck at boot logo, I have 2 firmwares ready to flash.
yurais said:
is there any tool capable of flashing this tablet?
I have tried all known by me and all report a sudden error as sson as you try to write anything.
like OP said.
I have one stuck at boot logo, I have 2 firmwares ready to flash.
Click to expand...
Click to collapse
There is a way to create an SDCARD and it will run from the SDCARD. I've forgotten how . I'm looking at one of my kids cracked ones right now. The touchscreen is cracked so I'm looking at build Ubuntu for it. I'll post when I figure out the SDCARD again.
Reset tablet to factory
I was able to use the factory irmware to reset the tablet from a computer. It will over write any custom recovery, etc. I have been unable to recreate a custom image any changes make the image fail. I found the software I used to create a bootable SDCARD but I can't get it to work keeps failing on creating the MBR. The software was the Rockchip SD Firmware Tool and there is an option to create SD Boot. So far I can only find v1.43 anyone have v1.45?
Let me know here as soon as you just remember anything related to this.
I got another tab like this, screen cracked and I could read off its firmware, so I now have a working firmware waiting to be written...
Enviado desde mi SM-N920T mediante Tapatalk
Thanks so much for this guide. I picked one of these up for $6 when HHGREGG was closing.
Proscan PLT7650G
Good day is there a guide and firmware for a Proscan PLT7650G
Technician
protectivedad said:
I was able to use the factory irmware[/URL] to reset the tablet from a computer. It will over write any custom recovery, etc. I have been unable to recreate a custom image any changes make the image fail. I found the software I used to create a bootable SDCARD but I can't get it to work keeps failing on creating the MBR. The software was the Rockchip SD Firmware Tool and there is an option to create SD Boot. So far I can only find v1.43 anyone have v1.45?
Click to expand...
Click to collapse
How did you flash the image? what software did you use,
Thanks.
it's not possible to change the rom or custom image of the tablet to another operating system like ubuntu or linux. It has allow OEM bootloader unlocked in the settings in developer section greyed out and it doesn't allow oem bootloader unlocking 'enabled'. You cannot enable it.
What you are doing is just resetting the factory image. or rom. you can just push the reset button with pin after charging the tablet for 3 hours.
These tablets are not 'cheap' to make and google, cell phone companies subsidize these 'cheap' tablets. so you have to use and pay them when you subscribe to their cell phone 'service' or google advertisements when you use their 'service'.
Lots of vaporware being pushed saying they can unlock something for $40 or downloading tools etc. wasted of time as it's impossible to unlock oem BOOTLOADER if the manufacture has locked it, you cannot install another operating system in the tablet, or smart phone. so don't waste your time.
Only some phones allow oem unlocking bootloader and those are the higher end phones costing $400-$600 for a tablet that are not 'subsidized' by google or you cell phone company as with 'cheap' phone or tablet.
the firmware is not available for download at the manufacture website that should raise alarms about the firmware. I've factory reset the device and now it's having reboot issues, either the firmware is defective or corrupt bootloader etc. The manufacture proscan seems to be selling the devices yet no technical support or even a direct download from the manufacture, downloading firmware from thirdparty servers is security risk. it seems like today lots bogus websites and no technical support from manufacturers in tech devices they sell. and people have to sites like XDA for 'free' technical support. Even Microsoft which makes billions in profits fail to provide proper technical support for some reason. and have to rely on 'free' technical support for bugs and issues with their software and hardware and lots vaporware apps etc.. bogus apps. that don't work.
Rooting gives the user the ability to install and change OEM software. from what i gather so don't waste your time, to root a device, allows the user to delete operating system files. if the manufacture doesn't allow changing the oem software there is nothing you can do. about so don't waste time trying root it or try to install ubuntu or linux on the tablet or smartphone if it's oem LOCKED. bootloader. you cannot unlock it. it's much harder to unlock oem software.
the method to 'restore' factory image or known as 'flashing the rom'
there is no reason to flash the rom etc.
1. just hold the power button and esc button at the same time
2. release the power button wait 2 seconds
and then release the esc button
you should now be in boot up mode.
this unit doesn't allow you to be in bootloader mode. so you CANNOT install another firmware or install linux etc. other than the proscan firmware.
3. press esc to select restore the factory settings
4. press the power button to select
this the easiest way to restore stuck in browser or need to flash the rom
again if the rom is 'corrupt' which is not likely
if that is the case
the option to "apply update from external storage" doesn't seem to work as you cannot mount to flash the rom and reinstall the .img file from the .zip file
"apply update from external storage"
where you saved your .zip doesn't work
the apply updated from ADB works you need a usb computer hooked up to you computer and terminal command to ADB to your table to rinstall the .imge file
update ,this no longer seems to work in installing the .zip file method to install the firmware.
lot of software and hardware that have no technical support or documentation and the stuff just doesn't seem to work and high security risk with no updates from manufacture as it cost them money to resolve issues. selling disposable technology tablets. that is not meant to last. basically toys. for kids.
I made the serious mistake of installing Kingroot which failed installing the first time, then it said try again, then it worked but totally took over every aspect of my phone with no apparent way to delete any of the new "features". It didn't seem to be as much about installing root as it was interested in installing some apps they force you to install which totally takes over your phone. (Side note - it is a shame that this is sold as a rooting software, it should be in reality named a virus or malware and avoided. Too bad for BLU users there doesn't seem to be any other way to attempt a root)
Then installing supersu-me created more havoc, then trying to re-install Kingroot completely locked my phone and put it in a boot loop.
Now upon first attempt, I can't seem to make SP Flash Tool or MTK Droid talk to the phone (first time trying now). I installed all the drivers that came with the forced install .exe (which installs the drivers even when no "unknown device" ever appears in device manager) but I have not yet found any "unknown device" in the Device Manager before or after installing these drivers.
When there is no data cable connected, the recovery menu must be used as the only method to power down the phone because it loops on and on with an attempted power up until the battery runs down. However after using the green on black background recovery menu (hold in VolUp and Power), and making the selection to power down, the phone finally powers down. Unfortunately, as soon as the data cable is inserted into the phone, it begins the boot loop again which makes the laptop ding-dong indicating USB driver loading/unloading over and over.
There are options on the green/black recovery menu to load from SD card and to enable ADB but I can't figure out what driver to use and which option on the green/black recovery to attempt. Of course the factory restore option did nothing and the options for ADB, Fastboot and load from SD card seem promising but all I can find for an image is a RAR file which appears as the format of someone's SP Flash Tool dump, and includes the scatter file MT6582_Android_scatter.txt plus other *.img and *.bin files.
With no way to get into my phone, I don't know how to attempt to load this image which I believe is the extraction from the SP Flash tool. I have installed CDC/ACM driver install package, Google Inc USB, Media Tek usbser from 2011 & 2007, usbvcom and Usbvcom_brom.
Any ideas? Thanks!
Donphillipe said:
I made the serious mistake of installing Kingroot which failed installing the first time, then it said try again, then it worked but totally took over every aspect of my phone with no apparent way to delete any of the new "features". It didn't seem to be as much about installing root as it was interested in installing some apps they force you to install which totally takes over your phone. (Side note - it is a shame that this is sold as a rooting software, it should be in reality named a virus or malware and avoided. Too bad for BLU users there doesn't seem to be any other way to attempt a root)
Then installing supersu-me created more havoc, then trying to re-install Kingroot completely locked my phone and put it in a boot loop.
Now upon first attempt, I can't seem to make SP Flash Tool or MTK Droid talk to the phone (first time trying now). I installed all the drivers that came with the forced install .exe (which installs the drivers even when no "unknown device" ever appears in device manager) but I have not yet found any "unknown device" in the Device Manager before or after installing these drivers.
When there is no data cable connected, the recovery menu must be used as the only method to power down the phone because it loops on and on with an attempted power up until the battery runs down. However after using the green on black background recovery menu (hold in VolUp and Power), and making the selection to power down, the phone finally powers down. Unfortunately, as soon as the data cable is inserted into the phone, it begins the boot loop again which makes the laptop ding-dong indicating USB driver loading/unloading over and over.
There are options on the green/black recovery menu to load from SD card and to enable ADB but I can't figure out what driver to use and which option on the green/black recovery to attempt. Of course the factory restore option did nothing and the options for ADB, Fastboot and load from SD card seem promising but all I can find for an image is a RAR file which appears as the format of someone's SP Flash Tool dump, and includes the scatter file MT6582_Android_scatter.txt plus other *.img and *.bin files.
With no way to get into my phone, I don't know how to attempt to load this image which I believe is the extraction from the SP Flash tool. I have installed CDC/ACM driver install package, Google Inc USB, Media Tek usbser from 2011 & 2007, usbvcom and Usbvcom_brom.
Any ideas? Thanks!
Click to expand...
Click to collapse
Hello,
Please try posting your query here Android Q&A Forum with all relevant details, the experts there maybe able to assist you.
Regards
Vatsal,
Forum Moderator.
If you dont have full ROM backup from your device or official ROM, dont do anything in terms of modding but to install vcom drivers (in my case they wont work without Virtual Serial Port Drivers) for bootloader, and adb/fastboot drivers, make sure theyre working, install Miracle Box / SPFlashTool (or similar ?) to be able to backup/flash your ROM/partitions from/to your device.
Check if it works for you (ie backup your ROM and try to flash something (cache) back.
Now when people are scared enough I want to tell you that it is almost impossible to kill (brick) your MTK phone, it happens mostly when people flash something that is not suppoused to be flashed (something from another device), the worst case if you flash wrong preloader or erase preloader but even after this there is a chance for resurrection. it takes time and efforts though.
++++++++++++++++++++++++++++++++++++
This is TWRP 3.2.2.0 recovery for Chuwi hi9 Pro.
Partitions available for backup:
boot, recovery, system, vendor, data (not incl. data/media = internal sd), cache and "para" (if you have got "recovery loop" - flash "para")
.img flashable - boot, recovery
look for detailed instructions for coomon things in other treads, like
- how to install bootloader vcom drivers and adb / fastboot drivers
- How to work with adb / fastboot command from your computer cmd window.
- how to use Miracle Box / SPFlashToll
This is detailed instruction how to make SPFlash backup out of your phone though Miracle Box does it in one click (well, almost)
- how to unlock bootloader (fastboot mode)
- how to use toilet paper (manual mode)
- how to install twrp recovery
- how to root
Unlock, Install, Root in one post
++++++++++++++++++++++++++++++++++++++
So, main point of this thread is TWRP, youll need:
- roll of toilet paper
- spflashtool backup (just in case)
- backup of your data (if you care) - your data will be erased during the process.
- unlocked bootloader
- twrp image
If something went wrong (highly unlikely), but "if".
Worst case scenerio: your phone will not boot into system / recovery
Solution: reflash (fastboot or flash tool): boot / recovery / system
Worst case scenerio: flash factory ROM (SPFlashTool)
Steps to do when you have all knowledge and all files ready.
IN YOUR CURRENT SYSTEM
In settings->System->About tablet -> click several times "build number" untill you see message "now you are developer"
In settings->System->Developer options: Enable USB debugging and OEM Unlock, connect cable
REBOOT INTO FASTBOOT
Power off, Power on holding "vol+"
Youll see black screen with 3 strings of menu (very small font):
- recovery
- fastboot
- system
use "vol+" for navigation, use "vol-" to confirm your choice (fastboot)
OR from your pc cmd window (shift+right click on adb folder -> choose "open command window here") type: adb reboot bootloader
press Enter
UNLOCK BOOTLOADER
on your pc (if cmd window is not ooened yet: shift+right click on adb folder -> choose "open command window here") type: fastboot oem unlock
press Enter
watch your phone and pc screen for messages
if you have vision problems, make sure you have a magnifying glass.
INSTALL TWRP
download hi9pro_twrp.img to your /adb folder
from the same cmd window type:
fastboot flash recovery hi9pro_twrp.img
*
Reboot into twrp and flash Magisk
*
Basically this is it
There is no command from fastboot to reboot into recovery (correct me)
You can power of, power on holding "vol+", choose "recovery" from menu
command to reboot into system: fastboot reboot
+++++++++++++++
* NEW *
Infect_Ed has posted TWRP recovery that he has compiled from source. DOWNLOAD FROM HERE
We don't know how to make twrp recovery work with encrypted data partition.
Read next paragraph if you are OK to trade security (encripred userdata) for functionality.
++++++++++
==========
In case you want to have your userdata decrypted (and full functional twrp), use following steps:
*** Please, note all userdata AND internal SD will be wiped during the process***
If you care
Save Internal SD card content to your ext.SD or computer
Make a Titanium backup of user apps (check Enable external data backup in Titanium settings)
If Titanium fails to write to your ext.SD than change Titanium backup folder location to int.SD
and after backup is done copy Titanium backup folder to ext.SD or PC.
Disable any passwords/pins from Settings->Security & Locations
(I know they are stored in /data/.. and will be erased anyway but just in case)
- Reboot into TWRP
- ftom TWRP -> Wipe ->Format userdata -> Confirm with "yes"
do not reboot into system
- flash encryption_prevener_hi9pro.zip to prevent system automatically encrypt userdata (it is used to insert modified fstab.mt6797 into vendor/etc)
- reboot system
- restore your int.SD content and apps
============
Link to official ROM/Firnware
*** Read this if you have Recovery Loop - no matter how you boot (buttons, from twrp recovery or from adb/fastboot shell) your device you always end up in TWRP recovery ***
- download 2018-09-29--para.zip
- unzip it - there is a folder 2018-09-29--para with 3 files inside
- connect your phone in twrp recovery mode to your computer
(you may need to turm "enable mtp" option in TWRP->mount)
- copy that folder into your sd card, the path is : TWRP/Backups/Hi9Pro
- click "Restore" (on the next screen make sure ExtSD is chosen as backup path)
- check checkbox "para", run restore, reboot
explanation: para is a partition contains last issued kernel reboot flag(command), like "reboot to recovery, reboot to system, etc." I think there is one flag that tells to kernel something like "reboot to recovery, do something untill its done", since this "something" never done, device reboots into recovery over and over again. This happend to me when I tried "factory reset" command from android settings, so android have sent my device into recovery mode where that "factory reset" command had to be performed but never done because its now not stock recovery but twrp.
**** If you have following problems:
Unknown Baseband -> Unknown IMEI -> NO sim card -> NO cell network
Look here first
****
***** If you came here from there.*****
and you are following their instructions, please, note, step 7. Unlock bootloader : DO NOT DO command "fastboot flashing unlock", just skip it.
Also, try to avoid "fastboot boot recovery.img" command to reboot into recovery (just use physical buttons for reboot). I'm not sure but something caused "recovery loop" in one case at least.
****** back-to-encr.zip if you want to encrypt your decrypted userdata (original fstab.mt6797 will be flashed, no data loss, you will not be able to mount userdata in TWRP, first boot may take long time due to encryption process - 10-60 min- depends how much data do you have)
******* twrp_recovery_chuwi-hi9pro_infectEd-XL is same Infect_Ed recovery adopted for our screen.
Hello. I made a mistake last week. I flashed accidently twrp with a scatter File from the HI9 Air through the spflashtool on the Hi9 Pro. Now it doesnt turn on etc. Is it hardbricked or can i still get it back to life?
No, its not complitely bricked if flash tool still recognizes your phone in bootloader mode. Most likely youve made same mistake I did. Depends of how you flashed that recovery - recovery only or full sisyem WITH new recovery. most likely you flashed only recovery partition. than, first, try to reflash backed recovery & next to recovery ("para") partition. in "download only mode" therell be an error "pmt has changed" than try "format & download" and "firmvare upgrade" - use scatter file contained only those two partitions. if you didnt make a backup ill put here that "para" partition and you can use hi9pro twrp img. in case this wont work, you may want to reflash the whole rom. We need to find factory rom image (from Chuwi or someone who did a back up prior he entered his credintals - thats another mistake Ive made Ive dumped a rom with all my logins information). if I have time I'll try "factory reset" to make a backup from "clean" system.
again, its almost impossible to brick mtk completely. even if flash tool doesnt recognize you phone (dead battery) there is a jump-pins method.
upd. Just looked @ Air scatter and found that Air recovery partition size is same as Pro (~16mb). now I dont know haw was that possible to overwrite next to recovery partition(s) and I think I used same Air img as you did and I've got size warning message when I flash it. anyway here is archive with scatter for recovery and para. just add twrp hi9 pro recovery (rename recovery.img to recovery.bin) and try to flash.
I didnt made a Backup (stupid me) i flashed the recovery file with a scatter file. When i plug the device in the pc the USB sound comes and its recognized as MEDIATEK USB PORT (COM8), but its removed automatic (USB Sound for disconnecting) The Screen stays black. So i have to wait for a Rom and a scatter File then?
---------- Post added at 19:50 ---------- Previous post was at 19:39 ----------
I tried your idea. I got an error Message: "Status Preloader Invalid" The Preloader File Format is invalid.
you know how to use flash tool , first you have to press "download" THAN connect usb cable.
but this is a good sign (pc recognize something), you may want to google for something like "unbrick mtk 6797 sp flash tool" for more info
this is archive w. 4 1st partitions (incl preloader)
Ive gotta go. Dont smash your tablet its 100% repairable, well 99.999%
thats how it looks
https://photos.app.goo.gl/9EK8vTwcTS3fDf1a7
---------- Post added at 20:21 ---------- Previous post was at 19:58 ----------
Still get an error Message for the PRELOADER. I read some Tutorials and dont find a Problem in my setup or my doing. Sucks :-/ But Thank you very much for your help
is it "MEDIATEK USB PORT (COM8)" appears for a second in the devices tree or "mediatek preloader usb vcom (android) (com8)"
if second, then everything is OK with the connection.
if its exactly MEDIATEK USB PORT (COM8) then there is something wrong
try to connect cable with diff buttons combination, i.e. "vol+" + connect cable .
try different "download agent" (DA_PL.bin ?)
Though I also used AllInOne_DA and flash tool V.5.1728
also, you might find Miracle Box Tool is easier to use
try "read" option first to backup your current rom
View attachment 4598709
I shoul ask this first:
- have you ulocked bootloader ?
- when your press "power" and "vol+" after some wait is anything appears on the screen
(boot menu: fastboot, recovery, regular boot) ?
- when your press "power" and "vol-" after some wait is anything appears on the screen
(chinese written) ?
Good Morning.
Bootloader is unlocked, no matter which key combinations ill try the screen stays black. When i have the usb cable at the PC (no matter which Port or cable) it the plugin - plugout sound plays every few seconds/minutes (not the same time in between). It is recognized as "MediaTek USB Port (COM4)" (different PC i tried). When ill try to install the vcom drivers i get the message that the best drivers are already installed and that are the mediatek usb port driver.
Image of the device manager: https://ibb.co/erkW6e
zelipukin said:
is it "MEDIATEK USB PORT (COM8)" appears for a second in the devices tree or "mediatek preloader usb vcom (android) (com8)"
if second, then everything is OK with the connection.
if its exactly MEDIATEK USB PORT (COM8) then there is something wrong
try to connect cable with diff buttons combination, i.e. "vol+" + connect cable .
try different "download agent" (DA_PL.bin ?)
Though I also used AllInOne_DA and flash tool V.5.1728
also, you might find Miracle Box Tool is easier to use
try "read" option first to backup your current rom
View attachment 4598709
I shoul ask this first:
- have you ulocked bootloader ?
- when your press "power" and "vol+" after some wait is anything appears on the screen
(boot menu: fastboot, recovery, regular boot) ?
- when your press "power" and "vol-" after some wait is anything appears on the screen
(chinese written) ?
Click to expand...
Click to collapse
---------- Post added at 07:34 ---------- Previous post was at 07:07 ----------
zelipukin i made a short Video about the behavior. The Device seems to activate when i push vol+ or power, but it looses connection when i stop holding the button or sometimes even when i hold the button.
https://drive.google.com/file/d/1m3YLrH5ZaVLttcSfDxx3RvL0DaXPcxzk/view?usp=sharing
...thinking
Just tried...seems like backups I made(and posted here) from Miracle Box is incompatible with SP Flash.
SP Flash doesn't like this and doesn't like that when tries to restore those backups but Miracle Box restores individual partitions or whole ROM w/o problem.
SP Flash is so inconvenient if you try to make a backup ... its also inconvenient when you try to restore.
Where did I get that Miracle Box for free ?
Let me figure out something...
....
This is something beyond my understanding but let me to describe what I did
- in SP Flash I choose scatter file and recovery.bin (like I sent to you)
- download only - no go
- download+format - no go
- firmware update - warning message about wrong partition size or something like this - Ignored - Flashed
- Bricked again (like yours - black screen - that's it)
- OK, I have several backups. Tried all of them - none of them works... except one
- Flashed that backup with SP Flash - no questions, no warnings, no errors - device came alive
- Flashed only recovery.bin - everything went fine
- Tried to find difference btw different backups - but couldn't find any
- So I tried to flash those files (to try 3.zip) several times and everything went OK, so this is 100% working backup.
Try it and see what happens, then we can go somewhere else. I still suspicious about those MTK Usb Com(8) instead of preloader usb. Also if you used "Firmware upgrade" option once, I beleive you'll need full ROM flash. Keep looking for it @ Needrom.com.
Strange things happen. Couple years ago I lost MTP connection with my MiMax. I tried everything possible but no luck - have to use UMS Enabler so I can read/write ExtSD at least, but MTP works with Chuwi.
I spent numerous hours trying to connect Chuwi in preloader mode until found that solution about Virtual Serial Port drivers.
Thanks for your help so far. Seems like my Device is half dead after 2 Hours of use
I'll tried to change the Drivers for the mediatek, it shows the device now with the preloader, but i think it doesnt work right. when i change the usb port it comes back as MediaTek USB Port (COM4). I made you a 15 Second Clip of the behavior.
https://drive.google.com/file/d/1m7wyIlIYJLN7ikmgUTzHBJtBdbZQrYaa/view?usp=sharing
Really weird. :-/
---------- Post added at 14:55 ---------- Previous post was at 14:40 ----------
and no chuwi hi9 pro rom at needrom yet. :-/
Sorry, haven't seen there is second page of this thread.
Saw a video where one guy showed how he changed drivers to right ones.
Main idea is in that short period of time when wrong drivers appear click right mouse button and choose "uninstall drivers"
after this in his video in next attempt system found usb vcomm by itself. worth to try
or other videos where guys catch a moment when this port appears in device tree but choose "update drivers"-> "browse my computer..."-> "let me pick from a list of device drivers" -> remove flag from "show only compatible.."->
I cleaned system, removed apps,accounts, etc. and made a backup of a "clean" ROM (well, almost). will put somewhere when/if I get good wifi somewhere (its 3GB.. w/o data partition) I'm on slow & limited mobile network.
but I don't think you need anything but recovery & para if you never used "format" & "firmware upgrade"
i think i used the upgrade one, after download only didnt work.
Ill tried the same method with changing drivers.
I will sit this one out, till you have uploaded the rom
Thanks for helping me out!
zelipukin said:
Sorry, haven't seen there is second page of this thread.
Saw a video where one guy showed how he changed drivers to right ones.
Main idea is in that short period of time when wrong drivers appear click right mouse button and choose "uninstall drivers"
after this in his video in next attempt system found usb vcomm by itself. worth to try
or other videos where guys catch a moment when this port appears in device tree but choose "update drivers"-> "browse my computer..."-> "let me pick from a list of device drivers" -> remove flag from "show only compatible.."->
I cleaned system, removed apps,accounts, etc. and made a backup of a "clean" ROM (well, almost). will put somewhere when/if I get good wifi somewhere (its 3GB.. w/o data partition) I'm on slow & limited mobile network.
but I don't think you need anything but recovery & para if you never used "format" & "firmware upgrade"
Click to expand...
Click to collapse
Just a few questions after using Hi9 Pro for about a week:
1) Where is the microphone ? Is it the small hole under the volume button ? (Strange position)
2) On the back side the two metallic stripes separating the plastic of the metal body are they something like antennas ? (LTE or WiFi or both ? )
3) What is the version of Bluetooth ? (4.0 or 4.1 or 4.2 ? )
4) Is it possible to use some kind of fast charging with a suitable charger or software app (firmware update) ?
MediaTek has a technology called "Pump Express" or something like that...
5) Do you have sudden, unexpected pop-ups of full screen advertisements while you are working with your tablet ?
How do we get rid of them ?
6) How do I find the LTE band the tablet is actually using while it's in use ?
I don't mean the table of supported bands, I mean the active band while using it.
Thanks!
1) looks like and its logical bc its close to mouth than if they put it in the bottom.
2) not sure, but most likely
3) according to this https://www.manilashaker.com/mediatek-helio-x10-vs-x20-vs-x30-chip-comparison-difference-specs/ its 4.2
4) too many different opinions, cant find the truth
5) none so far
6) you can try to find some info from mtk engineering mode *#*#3646633#*#* from you dialer
but its not intuitive and complicated
zelipukin said:
1) looks like and its logical bc its close to mouth than if they put it in the bottom.
Click to expand...
Click to collapse
Yes, it is a very small hole at the bottom right as you hold it, with a size of the edge of a needle!
zelipukin said:
1)3) according to this https://www.manilashaker.com/mediatek-helio-x10-vs-x20-vs-x30-chip-comparison-difference-specs/ its 4.2
Click to expand...
Click to collapse
Thank you.
zelipukin said:
5) none so far
Click to expand...
Click to collapse
But how did you do that ?
Did you add an Ad Block after rooting the tablet ?
The kind of ads I get, is more of suggested apps to install from Google Play.
It is literally bombarding me with an exhaustive rate.
I went to settings to "advertisements" of Google and it says that I can't turn it off.
Could it be some app that I installed that is spamming me this way ?
Can you suggest something to stop it ?
zelipukin said:
6) you can try to find some info from mtk engineering mode *#*#3646633#*#* from you dialer
but its not intuitive and complicated
Click to expand...
Click to collapse
I installed LTE Discovery and although I'm not rooted it seems that it works OK and it's showing me the bands.
The signal strength is lower than a mobile phone at the same position, same time, same provider.
Do you have an equal signal strength like your mobile phone ?
One more question:
7) Is it feasible for a developer to build a custom ROM for this device if he wants to or there are certain restrictions forbidding custom firmware ?
Is there any chance for a custom ROM in the future, because I don't think Chuwi will upgrade to 8.1 or better Android.
Thank you!
Regarding ads - I didn't do anything, I looked @ settings->google->ads and I can turn it on and then off w/o problem
Also I culdnt find any junk software so far, the phone came from GearBest factory sealed. I didn't do any system modifications except installing Magisk and modules - ExCard Access Enabler, init.d injector, Magisk SELinux Manager, ViperX (slightly better sound from speaker)
I didn't try the device as a phone, though it fit in a pocket of one of my jeans. I'd like to try but my current phone (miMax) has a micro sim.
7) Depends how popular is this device and who (developers) got it. Also, depends if this chipset is used in many other similar models (popular, prefferable) than you don't need to be a real "developer" to port ROM from a similar device and if you find that divice X is updated to 8.1 there is a chance someone will make a port (or you can try to do it yourself). I'm not a big fan of immediate upgrading to a newest version, for me they usually bring more limitations (you cannot let apps to modify files on your own sdcard f.e.) than benefits. I still use >2 y.o. andr. 6.0 custom rom on my MiMax.
zelipukin said:
Regarding ads - I didn't do anything, I looked @ settings->google->ads and I can turn it on and then off w/o problem
Also I culdnt find any junk software so far, the phone came from GearBest factory sealed.
Click to expand...
Click to collapse
Me too, I got a sealed and clean tablet from GearBest but If you look closer to that setting, it says that you can turn on or off the specialized ads for you, but you can't close ads completely.
For example, during web browsing do you see ads inside various sites ?
Or when opening apps on your tablet ?
I think we need an ad-blocker for this.
zelipukin said:
I didn't try the device as a phone, though it fit in a pocket of one of my jeans. I'd like to try but my current phone (miMax) has a micro sim.
Click to expand...
Click to collapse
I meant for mobile 4G data, not as a phone.
In my country we have three bands for LTE:
B3, B7, B20.
When the tablet rotates between 3 and 7, I have poor to zero signal.
But I saw with LTE Discovery that when it switched to 20 then the signal is very good.
So, with the help of MTK Engineering I disabled 3 and 7 bands and everything seems OK now.
I hope B20 to be used everywhere near to me.
zelipukin said:
7) Depends how popular is this device and who (developers) got it. Also, depends if this chipset is used in many other similar models (popular, prefferable) than you don't need to be a real "developer" to port ROM from a similar device and if you find that divice X is updated to 8.1 there is a chance someone will make a port (or you can try to do it yourself). I'm not a big fan of immediate upgrading to a newest version, for me they usually bring more limitations (you cannot let apps to modify files on your own sdcard f.e.) than benefits. I still use >2 y.o. andr. 6.0 custom rom on my MiMax.
Click to expand...
Click to collapse
I'm not familiar with Android internals so much, I am only using a Note II with TWRP and a custom 7.1.2 ROM and I'm missing some simple customizations not available with out Oreo 8.0 stock ROM.
I haven't even tried yet your first post regarding rooting and all the others because I'm not so sure where to find these tools and how to use them.
It could help a lot when you find some time to add more descriptions and links in your first post, if possible like Hi9 Air thread.
Thank you!
I dont know how and why, but I dont have any agressive advertisements. Checked Opera I'm using for webbrowsing - even "block popups" option wasn't checked. Had to download app yesterday (AutoNotification) from gp store and when I started it in a "free mode" there was a message like "to use this app in a free mode you have to agree to see ads", clicked "ok" , then message "downloading..." appeared...and nothing, no ads. I connect my tablet to the internet through my phone but dont think that matter.
Just a few more short questions:
8) Is there any other way to wake up the device instead of pressing the red button ?
For example double tap or maybe using the volume buttons or any other way.
Because I'm afraid of pressing the same button again and again.
9) Does this device have a WiFi 2x2 MIMO ?
I haven't found any particular info on this.
10) What is the kernel of the ROM ?
Is there any GUI compatible like Kernel Aiutor to make changes or take a look at info for the device ?
Thank you!
Dragged my JXD S7800b out of drawer, stuck it on charger and charged up okay.
However, boots up but does not get past boot animation?! So I am looking into how to recover the device please?
Used RockChip Driver Assistant v5.1.1 to setup my windows 10 machine.
RockChip Batch tool v1.8 connects when device powered up but shows pink but not green indication (with no useful error reports), so I don't appear to be able to jam firmware on that route.
Not having much fun with RockChip Factory Tool v5.3 since most images I am downloading fail to load into that, other than what appears to be the official firmware from JXD. That tool otherwise appears only for editing images but not uploading.
I bumbled onto the recovery menu. What wasn't well documented on the steps to get there, so ended up with:
1) power up while holding down power and + volume.
2) display shows an android on it's side, guts opened with a ! and the text message "No command"
3) insert USB
4) the missing bit, hit - volume to scroll into menu
So I found an adb option but haven't installed any android tools as yet on my new machine.
I burnt an SD card with etcher, to use the update from external storage option, but I am guessing the etcher wants to build a boot disk and a boot disk is not wanted? Etcher reports the image will not be bootable in any event.
Reformated SD and copied image onto it in the end but neither apply update or update rkimage "found" anything on the SD card or found the image to be invalid (despite it coming from JXD site).
So, any links to how to set up the SD card for updating the firmware would be appreciated.
I guess also I would like to know the difference between an "apply update from external storage" and "update rkimage from external storage" is what please?
Also, any links to JXD_S7800B_RileyROM_1.2.1.zip seem dead, so has anyone a live link to JXD_S7800B_RileyROM_1.2.1.zip please?
Also wik, with the usb cable in and holding down power and + volume, a few seconds in and windows reports usb device unrecognised. I have installed, uninstalled and re-installed the drivers to now avail. Not sure this is a problem? The fact I can occasionally, rarely, not often enough but just enough to irritate, get a pink but not green light up on the Patch Tool hints the software can almost, but not quiet, enough to make my teeth grind, "see" the device LOL.
Cannot get adb driver going on Windows 10 despite the driver helper having supposedly Windows 10 drivers? Whether that relates to the unrecognised device is unknown but it looks like the Drive Assistant installs usb but not adb drivers, which seem to need a manual install.
UPDATE
=======
Still looking for the information above BUT managed to recover the device by doing a factory reset.