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  1. M

    HP EliteBook 840 G2 Notebook - BIOS

    Ok, sorry. I will buy another pack of chips. And another programmer. Could you tell me how to know which bios file is real one for hp elitebook 840g2 6050A2637901-MB-A02? How to be sure which is right one to my laptop, considering I do not have original locked bios? And, considering I have...
  2. M

    HP EliteBook 840 G2 Notebook - BIOS

    I write bios file, but when verify - 'chip main memory with the content are in disagreement'. Every single time with every chip I got ( 8 of them- new from two markets). And none of them was completely empty when I bought them, on first reading. I don't know if it's normal or not. It never...
  3. M

    HP EliteBook 840 G2 Notebook - BIOS

    Sorry, but I have to post all story, cause I have multiple problem. First, I have elitebook 840 g2 without bios chip (removed from motherboard). So, I don't have original locked bios. Second, I bought few new (7-8) winbond 25q128fv chips in two stores and I have ch341 black programmer. Every...
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