HeuFei Based Headunit: No Touch, No Buttons.

[grinthock]

HeuFei based Headunit, no touch, no buttons.

Everything has been fine, no updates, no changes.

Unit was from Pumpkin, it's a RK3066 based unit with KDL

I get in tonight to drive home form work, and after bootup I noticed none of my SWC worked, buttons on the unit itself don't seem to work, and the touch screen is unresponsive.

The unit boots, I see things happening - just no controls.

Reset button works, Power button works - I can get into recovery mode, but cannot navigate with volume have to use power, tried doing a restore, same thing.

any ideas?

 

[BiliTheAxe]

Have you tried disconnecting the battery to remove it from a power source?

 

[Hein3G]

Everything has been fine, no updates, no changes.

Unit was from Pumpkin, it's a RK3066 based unit with KDL

I get in tonight to drive home form work, and after bootup I noticed none of my SWC worked, buttons on the unit itself don't seem to work, and the touch screen is unresponsive.

The unit boots, I see things happening - just no controls.

Reset button works, Power button works - I can get into recovery mode, but cannot navigate with volume have to use power, tried doing a restore, same thing.

any ideas?

Hi, i'm experiencing the same problem. I updated my HuiFei unit yesterday to MCU: MCU_KGL_2.78 and ROM: update_4_4_4_800X480_RK3066_29_MAL_27_10_2015. Everything was working fine and did all my personalization. I was able to turn the unit on and off and use all the buttons. Later the day when i used it again all the buttons as well as the screen was unresponsive. The only the power button can turn the screen on and off. I also tried to boot into recovery, but no luck...

I'll try disconnecting the battery and see if it works.

---------- Post added at 12:23 PM ---------- Previous post was at 12:01 PM ----------

Have you tried disconnecting the battery to remove it from a power source?

I just tried disconnecting the battery, left it for a minute or so and connected it again then turned on the unit. No luck, the screen and buttons are still not responsive...

 

[BiliTheAxe]

Hi, i'm experiencing the same problem. I updated my HuiFei unit yesterday to MCU: MCU_KGL_2.78 and ROM: update_4_4_4_800X480_RK3066_29_MAL_27_10_2015. Everything was working fine and did all my personalization. I was able to turn the unit on and off and use all the buttons. Later the day when i used it again all the buttons as well as the screen was unresponsive. The only the power button can turn the screen on and off. I also tried to boot into recovery, but no luck...

I'll try disconnecting the battery and see if it works.

---------- Post added at 12:23 PM ---------- Previous post was at 12:01 PM ----------


I just tried disconnecting the battery, left it for a minute or so and connected it again then turned on the unit. No luck, the screen and buttons are still not responsive...

You may have updated to the wrong MCU file. They are not interchangeable between manufacturers.

 

[Hein3G]

You may have updated to the wrong MCU file. They are not interchangeable between manufacturers.

Hi have a KGL HU and after the update everything worked fine even restarted the HU a few times without any issues... When i started the unit up again after a few hours, that's when i experienced the no response issue.

I have tried the steps to get into recovery -> Press reset + Power for a few seconds and then release reset... but it just starts up normally

 

[Hein3G]

Hi have a KGL HU and after the update everything worked fine even restarted the HU a few times without any issues... When i started the unit up again after a few hours, that's when i experienced the no response issue.

I have tried the steps to get into recovery -> Press reset + Power for a few seconds and then release reset... but it just starts up normally

I managed to boot into recovery after a few tries and reinstalled the MCU and ROM and the screen and buttons work again. The GPS button is mapped for the "back" function for some reason, but that might be some app changing the assigned function.

 

[grinthock]

So I pulled the power on mine -- no dice.

I want to reflash the MCU, but I can't get into the unit to find out which MCU I have -- catch 22!

 

[grinthock]

ok well, a little progress. I remembered reading elsewhere that someone plugged in a keyboard, so I plugged in a MPC keyboard/trackball combo into the unit -- and now i have a mouse, that's useful.. So I was able to check, it says I have KLD -- but is that what's flashed, or is that what I have....

I tried to assign SWC keys, just to see if it was recognizing them - no dice....

I am also installing fresh firmware and fresh MCU, see what happens.

 

[grinthock]

Well, success.... reloaded KLD mcu.img with latest, and latest firmware... All working..

Keep things simple with your software.. Keep it classy.