![]() However, you can also try to find a 2.4GHz channel that will perform better on the current card. purchase of an external USB card (here is a problem in the form of a fairly large device hanging from the USB port, or you can buy a useless "nano" card, the range and capabilities of which are proportional to its size). After such modification, any card that fits in the slot can be installed and it should work. ![]() Installing a modified BIOS has certain risks (although if the BIOS is already checked by others and matched correctly for the computer, the risk is reduced). You can try to search on the forum - you can find BIOSes for a large number of laptops with the list removed, although I did not check whether up to 250 G4 also. There are two things that can be done: - BIOS modification that bypasses checking if the card is HP approved. ![]() A couple of google phrases and it turns out the 250 G4 has a whitelist in the BIOS, so any tab won't work. ![]() So officially only 2.4GHz cards work in this model. According to the service manual for this model, three models are supported: The model mates RTL8723BE comes complete with Bluetooth. When replacing the internal card, it must be a card from HP printed with the appropriate SPS number xxxxxx-xxx. HP laptops usually had a BIOS lock to detect "unauthorized" network cards.
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