Bricked SoC ? Stuck in MaskROM mode, unable to update firmware

sylvainsab

I hope my mistake can be repaired. Some weeks ago I seemingly bricked my RK3399 SoC, because I followed an advice from some internet tutorial advising to erase some blocks using an upgrade_tool ws 0xsome_address /dev/null or something like that. It was a rather small address.

Since then I can only boot in MaskROM mode, but what worries me the most is that the size of the flash memory is displayed to be zero :

1. sudo ./upgrade_tool rfi
   
2. 
   
3. Flash Info:
   
4. 
   
5.         Manufacturer: SAMSUNG,value=00
   
6.         Flash Size: 0MB
   
7.         Block Size: 512KB
   
8.         Page Size: 2KB
   
9.         ECC Bits: 0
   
10.         Access Time: 40
    
11.         Flash CS:
    

Copy the code

Also I cannot simply wipe out / upgrade the emmc firmware like I used to do :

1. sudo ./upgrade_tool uf ffly/stock/FIREFLY-RK3399_Ubuntu20.04-r240_v2.5.1d_230330.img
   
2. Program Log will save in the /root/upgrade_tool/log/
   
3. Loading firmware...
   
4. Support Type:RK330C     FW Ver:8.1.00   FW Time:2023-03-30 16:11:48
   
5. Loader ver:1.1a Loader Time:2023-03-30 16:11:20
   
6. Download Boot Fail
   

Copy the code

Is there a way to solve this and hard reset the SPI/emmc ? Probably using the electric pins ? Thank you.

PS I don't mind which platform to use, this is posted from Linux using manjaro live usb but I have a spare Windows computer among others.