Not booting - LED blinks only

majki09

New member
Hi!
My Z83-4 Pro went dead, does not power on. It was like this guy's:
https://theminixforum.com/index.php...n-on-after-firmware-update-and-shutdown.2298/

So I removed CMOS battery for a while like it was shown on the video, but without getting any better.
I've supposed that BIOS is corrupted, so I read out all SPI flash content as a backup with cheap SPI programmer. I have downloaded BIOS image from official site and overwritten BIOS memory area. Now it still doesn't boot up, but LED blinks approx 1 time per second, looks like trying to boot, but resets all the times.

Log from UART:
Code:
I2C1 clock 200000 Hz
neilnee config0:0xfffffffe  config1: 0x7c00
request pin :3  irqnum:48
neilnee request gpio: 500040c0 pin: 0
request pin :6  irqnum:50
neilnee request gpio: 500040c0 pin: 2
neilnee sleep pin  state: 0
read:2017-01-01(0) 00:00:19
request pin :13  irqnum:82
neilnee request gpio: 50004140 pin: 2
request pin :25  irqnum:1
neilnee request gpio: 50004000 pin: 1
request pin :27  irqnum:83
neilnee request gpio: 50004140 pin: 3

CPU @ 12000000Hz
+-------------------------------------+
|      J-Fairy mcu firmware code      |
+--------Firmware version: v05--------+
+-----------Author: neilnee-----------+
+-----buile time: 2017/04/20-17:15----+
+-------------------------------------+

--------input gpio state------

PIN3=1  PIN6=0  PIN13=1  PIN25=1  PIN26=1  PIN27=1  PIN29=1  PIN31=1 

--------output gpio state------

PIN5=0  PIN16=1  PIN17=1  PIN18=1  PIN21=1  PIN22=1  PIN23=0  PIN24=1 
PIN30=0 

enter power on dealy 2s...
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
exit power on dealy 2s...
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
neilnee sleep pin  state: 1
neilnee sleep pin  state: 0
.....


Can anybody help with understand the problem and fix it?

Thanks and regards.
 
Last edited:
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