Hi ,Service firmware for devices without DSP, who mistakenly installed firmware for DSP and lost sound.Based on my LITE mod for devices without DSP with full Root access and a modified launcher.
Install only to those who can not return the sound !!!
ATTENTION: after the firmware, everything will be reset for you - the touch will become mirror and will change LEFT-RIGHT. The buttons on the panel will not work!
And maybe all the settings of the device will be reset. You need to rewrite all your settings as they are put on a piece of paper or take their photo.
After flashing, you need to configure the touch and configure the buttons again. I am enclosing the photo below where it is located. Go to Settings - Car-related settings - Setting the touchscreen and button on panel. As you configure, you need to reboot.
I want to warn you: everything that you do, you do at your own peril and risk, and you decide whether to do it or not.
I made a recovery firmware in .img, for those who do not boot the device or a complete "brick" with a normal screen resolution.
1. For those who have an sd slot in the device.
2. Who connected USB OTG inside the device on the motherboard.
The archive contains:
STM32_KC1E0112-P01-188.8.131.52.1_20200118.img - the recovery firmware itself
SDDiskTool_v1.57.cab - a program for creating a bootable sd card for those who have an sd slot in the device
DriverAssitant_v4.91.zip - drivers for connecting USB OTG
RKDevTool_Release_v2.73.zip - program for flashing via USB OTG
Read about USB OTG here (thanks to a_vtom for instructions):
I checked the recovery of the device with this firmware personally, via USB OTG.
today my unit crashed after an update ....
i tried method with sd card and your firmware recovery STM32_KC1E0112-P01-184.108.40.206.1_20200118.img - it doesn't work! I waited more than an hour and when my unit rebooted it was left with a flashing Welcome logo !! I tried several times .... so more than three hours but same result !!
in the end I used KC1E0104-PA1-220.127.116.11.1_20190929_181347.img
and everything works .... i had problems for the wrong resolution but then i solved it with firmware.zip update......
do you have another firmware.img 1024x600 to restore in case of problems ?