free shipping HDD PCB LOGIC BOARD/BOARD NUMBER: 100442000 REV A | Электроника

free shipping HDD PCB LOGIC BOARD/BOARD NUMBER: 100442000 REV A | Электроника

 Product detail:

PCB number is on board ,no on white label ,We have marked it in the main diagram. Please check it.

buyer reading!!!

1.These boards are used, There are some scratches and dust on the board ,it is normal for a old board,but the circuit board components not damage , the interface did not break.if you canot accept a old board  ,to avoid dispute , pls donot purchase it .

2. All PCB have been tested before shipping. If the PCB is faulty during shipping, please inform us immediately after your received it.
3. If you are not sure the PCB is compatible with your HDD or not. Please contact us

4:The PCB  number is have  REV A/B/C/P1 ,different  A/B/C/P1 ,all is comaptible ,no difference,We sent it is randomly ,if you need the same ,we canot guarantee that the same is sent ,pls do not buy it ,thank you! 

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We hope that every customer who buys circuit board has a certain repair technology, because some circuit boards can recognize the hard disk directly on the disk, each disk body and its original board are one to one, that is a BIOS chip. Therefore, the BIOS chip of the old circuit board (that is, the bad board) must be made. Switch to the new board so that the hard disk can be identified. The hard disk circuit boards we sell are marked with BIOS chips.

Please confirm whether it is the problem before purchasing the circuit board! Due to a hard disk failure is more complex, and not necessarily hard disk problems is that the problem of the board, the circuit board on the surface seems to be some hard disk is broken, but is actually a disk failure, or two faults exist; Therefore, we do not guarantee that your hard drive will be able to run normally after you change into our circuit board.

notice:

No turn on electricity or smoke short circuit or bad interface, is a circuit board fault, other conditions of the circuit board bad possibility is very small, for example, when the hard disk work board heating and hot hand. The hard disk does not turn to the disk, the disk is slow, etc.

 Replacing this circuit board needs to change the BIOS chip on its own. It is recommended to weld with hot air gun. If you can't weld yourself, it is recommended that you repair the computer repair shop by mobile phone and ask professionals to weld it. Most of the Seagate is to return to the BIOS chip. The western part of the circuit board does not have BIOS chips, many of which are to return to the main chip. The difficulty is great.

Note: change the BIOS chip attention: the bad board of this BIOS (ROM) welding down, welding to the good board, your hard disk can work (the good board is BIOS (ROM) on the board, so trouble you to take it down. " When changing, pay attention to the direction of the word on the BIOS (ROM), do not install the reverse, otherwise it will burn BIOS!!!!

Replacement the PCB only can solve the problem that is caused by the PCB faulty and HDD failures are not always caused by the PCB faulty. This PCB is not guaranteed to fix your HDD.

Symptoms of failure: 
The drive will power up normally (no ticking noises, errors etc) but will not be recognized by the computer
The drive will power up normally and be recognized correctly but will report a size of 0 bytes
The drive will power up but report SMART errors on boot Replacement the PCB may not solve the above problem. These problem is caused by the HDD firmware corrupted.