Ok, never mind my previous post, I misread the manual. The terminal DUmp command works on the RAM of the S4, not directly on the device in the ZIF socket. My fault, sorry. Anyway after a LOad and DUmp to verify that the device was indeed blank, I tried programming it again: >BURN AMD 28F256 12.00V B...

I had ERASEd the device first, but I can try again. First I dump a few bytes: >DUMP 28F256 00000,50 00000 C3 00 00 13 10 07 FF FF C..... 00008 C3 7B 11 AE 0C BC 0C FF C{...<. 00010 FF FF FF FF FF FF FF FF  00018 FF FF FF FF FF FF FF FF  00020 FF FF FF FF FF FF FF FF  00028...

I am trying to program an Am28F256A (AMD) in my S4. The S4 has library 2.93: DATAMAN S4 LIB 2.93 512K BYTES RAM and I selected AMD AM28F256 as the device >CP >SELECT DEVICE AMD 28F256 12.00V Burn pin 1 10us No Overprog Alg 66, Ref 011A The EEPROM checks out: >PRETEST 28F256 00000-07FFF=00000 WILL BU...