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JCI screen toggle, any blind how-to undo method?

2.9K views 4 replies 4 participants last post by  the-compiler  
#1 ·
Good morning, I'm sorry if I'm not clear enough but I'm not that good with the English language...
It is a mazda 3 i touring 2.0 2016 made in mexico with 7 years of use.... The system is 53.00 750 or "close to" number (please forgive im doing memory excercise here).

My infotainment system was working fine for the most part, i installed few AIO tweaks 5 years ago (bigger art, change shuffle order), i activated wifi, activated non-original navigation card and settled there... during all this years only weird thing noticed from 2 years to date (gradually more files) was that the audio files on a usb i used for 5 years (like 5k songs) several got corrupted (sounds like a tape being played quickly)... i bringing this (maybe unrelated data) in case is relevant for experts to point some failure unnoticed for me.

So, a few days ago I entered the JCI menu and deactivated the touchscreen speed lock, when I used the car again, it had the problem of ghost touches (never happened before the toggle speed), so I went back to deactivate the option, while i was in the JCI menu, I rotated the wheel just reading options until it appeared "screen test" so i run the test figuring maybe there was a failure, and apparently nothing happened, after that I used the car and gosht touches was still present when stopped.

Next night i entered the scripts submenu on JCI menu, i was reading all script options but then I accidentally pressed "screen toggle" (i think thats the option below speed toggle) I pressed it again and again to check and saw that it changed between 2 options, so I left it as I supposed it was originally (I don't remember which option it was), so I turned off the car and went to sleep, the next day when I turned on the car, the screen no longer works, nor does the camera reverse, i figured is not bricked because i can use system by voice commands or movements of the wheel, i can activate options such as using music from USB, fast forward songs, mute, from joystick and wheel, I can even enter the JCI menu with the combination of keys (I cant see it, but I know it's a yes because the music is silent and the volume or mute button stops working until I turn the car off and on)...
I figured i deacivated screen from very deep level, so tried the key combinations to reset (nav-music-mute and back-nav-mute) 20, 30 seconds and it doesn't seem to work. i need help please!

i wanted to try factory reset from menus, but haven't been able to blindly get to the factory reset menu using the joystick and wheel, maybe that might work? I followed a video to get to that point that was guiding me blindly (2 wheel spins to the right, one click, 6 joystick to the right, etc. etc.) but I didn't make it, video it's another version of the car (GT), maybe does the menu vary?
can someone compile a autorun script to usb stick to help me undo???

Any help will be greatly appreciated!!!!!! thank you!!!!
 
#3 ·
many thanks this worked pretty well!!!, just in case any other has the same problem, i followed this instructions:

Freeing up memory in Version 70 firmware
please support they blog, anyway here is the direct link:
Tweak written by ameridan 11/12/2018 to substitute TestCtrl files modified by frippi & ameridan


1) i downloaded the packed files from them, and uncompress

2) Copied all files to FAT 32 formatted USB drive.

3) Since i already have buttons acces to JCI menu. y renamed tweaks.sh.uninstall, tweaks.sh.install adding .bak to file extensions to avoid system read those files (could be better avoid copy to usb but ooh well...)

4) renamed tweaks.sh, the same way adding .bak to extension, copied tweaks.sh.black_screen, and changed name of the copied file to tweaks.sh

5) Plugged in the USB drive to the car and waited for the script to run. Once completed, system menu appeared again!! 🎉🎉, pulled out my USB drive. voilá i have screen again!!.

many thanks to Ameridian and Craz to point me at the right direction!
 
#5 · (Edited)
Hey, I recently ran into this issue. I was using MazdaAIO tweaks, and clicked "DISPLAY TOGGLE" by mistake. Now, my touchscreen is not working. I've found a way to see the screen by using my phone light, and I've tried these steps, but what happens is that the JCI menu pops back up. THe menu where you're able to select "DISPLAY TOGGLE" or "TERMINAL" etc. I can't click any of those, so what am I missing or doing wrong? I renamed the tweaks files and deleted the ones we don't need too. I'm using the Mp3 method, where I have to select my USB1 from the menu for the overlay to pop up. I never had ID7 installed beforehand, so I'm not sure my script will run like OP. Thanks in advance