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Head unit EDL mode

Head unit EDL mode

saliks
saliks
saliks
Junior Member
21
10-07-2026, 12:19 PM
#1



Hello!
I have a bricked head unit with qualcomm snapdragon 662, i turn the unit to EDL mode but the pc not detect the unit.
I tried all the ports, I tried on others PCs but no matter what I do I can't see the unit.
What could be wrong?
Thanks!
hovatek
hovatek
hovatek
Administrator
51,038
10-07-2026, 08:27 PM
#2
(10-07-2026, 12:19 PM)saliks Hello!
I have a bricked head unit with qualcomm snapdragon 662, i turn the unit to EDL mode but the pc not detect the unit.
I tried all the ports, I tried on others PCs but no matter what I do I can't see the unit.
What could be wrong?
Thanks!

Does Device Manager refresh or the PC make a sound when you connect?

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saliks
saliks
saliks
Junior Member
21
10-07-2026, 09:45 PM
#3
It doesn't refresh and doesn't make any sound when I plug it in.
I can't understand why this is happening.

Maybe when the unit goes into edl mode it disables the usb and I need to solder cables to the board?
This post was last modified: 10-07-2026, 09:47 PM by saliks.
hovatek
hovatek
hovatek
Administrator
51,038
12-07-2026, 11:23 PM
#4
(10-07-2026, 09:45 PM)saliks It doesn't refresh and doesn't make any sound when I plug it in.
I can't understand why this is happening.
..

What is the present condition of the head unit? Stuck at logo? bootloop? Dead?

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saliks
saliks
saliks
Junior Member
21
13-07-2026, 04:50 PM
#5

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Sorry, I forgot to write it.
It reboots every 9-10 seconds (first android logo)
hovatek
hovatek
hovatek
Administrator
51,038
14-07-2026, 03:50 PM
#6
(10-07-2026, 09:45 PM)saliks ...I need to solder cables to the board?

Possibly.
How exactly are you booting into EDL?

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saliks
saliks
saliks
Junior Member
21
15-07-2026, 05:37 AM
#7
With GND and BOOT pins, the unit have black screen and dont autoreboot.
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