Lenovo X1 7th Gen Carbon removing WSON Bios

[davem12]

Hello,

I am trying to read the Bios on a Lenovo X1 Carbon 7th gen. It has a Winbond W25Q256JVEIQ chip in a WSON configuration. I have not come across this type of chip in the past and there is two very small resistors next pins 1 and 3. I don't want to blow them off when using hot air. Would it be possible to read on-board or does it need to be removed to read correctly?

Any tips would be very helpful.

Thank You

[ktmmotocross]

Re: Lenovo X1 7th Gen Carbon removing WSON Bios

did u know what is surface tension?

[davem12]

Re: Lenovo X1 7th Gen Carbon removing WSON Bios

I believe the surface tension with solder is it will hold it in place and the chips will align to the solder pads.

I think one of my issues is I don't have a pre-heater for board rework and I need to apply a lot of hot air to get the solder to melt.

Thank You