Cannot start RockPi4

#1

I followed guides on how to start Rock PI. But it fails to start with the following error when using TTL. Can you advise what the problem could be?
CS = 1
MR0=0x18
MR4=0x1
MR5=0xFF
MR8=0x8
MR12=0x4D
MR14=0x4D
MR18=0x0
MR19=0x0
MR24=0x8
MR25=0x0
Bus Width=32 Col=10 Bank=8 Row=15/15 CS=2 Die Bus-Width=16 Size=2048MB
Channel 1: LPDDR4,50MHz
CS = 0
MR0=0x98
MR4=0x1
MR5=0xFF
MR8=0x8
MR12=0x4D
MR14=0x4D
MR18=0x0
MR19=0x0
MR24=0x8
MR25=0x0
CS = 1
MR0=0x18
MR4=0x1
MR5=0xFF
MR8=0x8
MR12=0x4D
MR14=0x4D
MR18=0x0
MR19=0x0
MR24=0x8
MR25=0x0
Bus Width=32 Col=10 Bank=8 Row=15/15 CS=2 Die Bus-Width=16 Size=2048MB
256B stride
read addr 0x4000 = 0x5A004000
ERR

#2

This looks like a hardware issue. Have you ever screwed the board on the big heatsink?

#3

Yes. I attached a heatsink to a board. Do you think I broke a chip?

#4

Please ask the distributor for an RMA. This dram issue is a hardware issue.