PCB failures (Such as Samsung PCB BF41-00303A) affect thousands of hard drives every year and often result in permanent data loss. A hard drive may suddenly fail to power on, and a computer may not detect that it is plugged in. Some failed hard drives will also show up in computer BIOS with incorrect brand/model information. PCB failures can also cause physical issues such as read/write head failures, and many PCB failure symptoms overlap with the symptoms of other physical hard drive issues.

Some emails from customers of Samsung PCB BF41-00303A failures are listed below, along with tips for replacing & repairing.

Samsung PCB BF41-00303A Failures:

Q: Samsung HD103SJ FW 1AJ10001 corrupt ROM ?

… See terminal: *PA VID=0000 PN=0004 Rev=0002- 785x Found *PA VID=0000 PN=0004 Rev=0002- 785x Found ChipRev = 63B0 U S_0 [DEBUG HALT MDL_RSRC_BufferAlloc():10034AB5 L0 1003A471] RV En Sensor Circuit En Shock Sensor Circuit A same-code PCB (BF41-00303A 00) with a different ROM does spin the drive, but no detect/go ready. Note: I only have a donor PCB from , not a complete donor HD. Swapping ClientROM to this DonorPCB is also no-spin. Swapping DonorROM on ClientPCB spins up but no …

Q: Samsung BF41-00303A PCB Needed

PM me the price if you have the PCBThanks in advance.

Q: Samsung HD103sj not spinning or making any noise.

the fuse Still no results Right now I’m looking to get a new PCB for this drive I plan on performing the chip swap as well, my only concern is PCB compatiblity I see model numbers for PCB’s such as BF41-00314A 00 S3M Rev 03 R00 and BF41-00303A 00 I’m just not sure which ones should be compatible I’ll post some pictures of my hard drive for reference iimgurcom/eE289jpg iimgurcom/ttyAAjpg iimgurcom/jFV5vjpg Thanks

Replacement Samsung PCB BF41-00303A:

To repair a failure board, the simple way is swapping the failure board with a replacement board. Donor boards on HardDriveParts.com are listed below:

• HD103SJ Samsung PCB Circuit Board BF41-00303A
• Samsung HD105SI PCB Board BF41-00303A
• Samsung HD754JJ PCB Board BF41-00303A
• Samsung HE103SJ PCB Board BF41-00303A
• Samsung PCB Board BF41-00303A 00
• Samsung ST1000DL004 PCB Board BF41-00303A