Sony Vaio VGN-FW21m

Hi all,

I have a vgn-fw21m vaio. I updated it with the latest bios found on the sony support page. I bought a new compatible battery that has to update the bios to an earlier version. I cannot do it. It gives me an error like: "IHSI: get support mode fail in SMI! "
Can anyone please help!!!
6 answers Last reply
More about sony vaio fw21m
  1. If what you mean by compatible is that the battery is not manufactured by Sony then you may have big problems. If the battery was made for the earlier BIOS version of the Sony in question it would seem likely that Sony has changed the BIOS so that it is no longer supporting that battery brand. This may have been deliberate or it could be a side effect a BIOS upgrade that was required for different reasons.
  2. Ok, but can't i flash the bios with the original one that was supplied the laptop with?
  3. It is possible but that is something you should check into before you do it. Flashing the BIOS can have unintended consequence as you have recently discovered. Here is a link that demonstrates people having battery BIOS issues. One guy has even turned his laptop into a brick. Imo you should return your battery and obtain a Sony battery. If these guys experiences are anything to go by you have gotten off lightly so far.
  4. Ok, that i know. The only problem for me is that I can't find anywhere the original bios file foor this kind of laptop. Any ideas?
  5. The only place you can go with any assurance is Sony. If you cant find it there then you may be out of luck. It may pay to contact them and make an enquiry.
  6. The original bios can be found in de windows vista section of the drivers page for the vgn-fw21m.
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