[MTCD Software Development] Flying_Hero:
The list of the can't reach recovery, tuck on black screen issues...

Hello everybody!

It's going to be long post.

Like most of all who writes to this topic; I have a problem!

The topic has 980 posts and I read them twice. First for checking that if anybody has the problem of mine. And second one is for keep note and track who solved this problem.

The problem is "black screen".

Here is my story:

I started with kumarai's method. But after installation, at the "remove the sd card" step the unit had black screen as the kumarai's method. But I should wait until erasing screen finishes it's work. But I put sd card (the new rom) at this point and started wait. After about 20 minutes, nothing happened. Only black screen.

(At this point my car's battery drained because of I didn't start the engine. I've solved this. whatever.)

I know, I did something wrong. Tried everything from the beginning exactly the same as [MENTION=6738895]kumarai[/MENTION]'s method. But never get out of the black screen. Can't boot from sd, can't boot to old Android rom, can't enter to the recovery. Doesn't matter which method I use.

I also tried [MENTION=3556393]SkyBeam2048[/MENTION]'s method too, a lot of times.

Neither I can upgrade to 8 or downgrade to 6. Can't get to the recovery also.

At this point,

I listed who get the same problem on this topic. Some of them got solved, some of them hasn't reported the last situation.

[MENTION=2093214]hv006[/MENTION] -> Solved (bought new one)

He has no SD Card slot. Will try to add sd card reader with ribbon cable. Didn't try get otg with [MENTION=4974080]marchnz[/MENTION]'s method because needed to use solder. Bought new device with 4gb/32GB Android 8.

[MENTION=7636503]YoshiroWanKanobi[/MENTION] (not reported solved or not)

Got black screen while downgrading to Android 6.1.2

[MENTION=454491]sibeng[/MENTION] -> Solved with [MENTION=8817431]Wadzio[/MENTION]'s method

His device has 2 sd card slots. When trying to upgrade, stuck at the black screen. SD card doesn't recognize, not boot from sd card. He did everything right, by the way.

Solved with [MENTION=8817431]Wadzio[/MENTION]'s method here

[MENTION=1312272]Psycho Dave[/MENTION] -> Not reported solved or not

Won't boot from SD Card. Boots Android as normal.

Swapped some cables from inside of the unit and upgraded to 8. And wanted to go back to 6. But now, can't get to the recovery even usb keyboard method. Also reset hole won't work, can't get to the recovery anymore.

Some more information from his #486 post:

After SD boot with green Android (he didn't tell about how to get booted from sd again, may be he mentioned the very first attempt) system tell to remove sd. He tried this several times. Once he waited for 1 hour. The last try worked but got chinese screen.

The last post of him to this topic is: #533

Says made a bootable sd with "firmware_new.img" and started update. Cut the process half, ejected sd. Unit booted in to his old Android. Still can't get to the recovery.

[MENTION=4768815]scorillo_ro[/MENTION] -> Not reported solved or not UPDATE: SOLVED WITH THIS THREAD

At the beginning he had some signature problems and solved with with [MENTION=6738895]kumarai[/MENTION]'s method.

He can't enter to recovery anymore. Cannot boot from sd card also. Started [MENTION=4974080]marchnz[/MENTION]'s method at "PX5 stuck in bootloop" topic here

[MENTION=2028005]scooteriuly[/MENTION] -> Not reported solved or not

Has MTCE GS Unit PX5-4GB

Upgraded from 6 to 8 succesfukky but decided to turn back to Android 6. The unit doesn't boot from sd card. Stays at the black screen.

[MENTION=8959019]Skoda17[/MENTION] ->Not reported solved or not

Has same problem with Psyco Dave. Can't get the recovery.

[MENTION=5689970]cookie1338[/MENTION] - Not reported solved or not

During update he waited for "erase" message about 10 minutes. Then tried to get recovery. Was not possible.

Tried flashing 8 again and he had black screen again. Can't enter to the recovery also.

[MENTION=6716253]Oberbergler[/MENTION] -> Solved.

He had some black screen but worked after 20 to 30 minutes. Oreo recovery showed up and installed successfully.

[MENTION=3377572]supermicha[/MENTION] -> Solved.

Same problem: Had black screen and can't get recovery.

He used sdupdate.img from 6 to 8 kit and update.zip from Android 8 GS update.

(Actually I didn't understand how to solved exactly. the post number is #529 )

[MENTION=8934753]Mad_Mod[/MENTION] - Solved

He had the same black screen issue. After a couple reboot the Android 8 installed successfully.