nRF51822 FICR cleared. root cause?

[pablo]

We have two nRF51822 chips with cleared contents in FICR, e.g. addresses 0x10000000 - 0x100000FF are 0xFFFFFFFF.

UICR works as expected. Chips execute code. Radio performance possible lower than normal (not verified though).

Please advise on potential root causes or rationales.

[Hung Bui]

Hi Pablo,

Please create a support case in our support portal (MyPage) here. We would need more information from you.