Replacing SX350J chip

[kalbo]

So yeah, just wondering if anyone has ever done it?
I've had a nice Anatolian mod sat in my drawer for almost 2 years, well actually since I put the battery in upside down and fried the chip (schoolboy error)
I've got a replacement chip, but so far haven't been able to find anyone willing to do it for me.
I'd really like to get it up and running again, so is it actually a major task, or maybe something I could tackle myself?
Any advice would be greatly appreciated
Thanks

[VapingBad]

The soldering is easy enough as they come with wires attached or used to, it more how easy it is to physically get at and fit the board. I did one years ago for a friend and it was a nightmare as they changed the size of the inductor (large ferrite ring with wire wrapped around it) and I had to grind the inside of the case, a switch and the inductor to get to to fit. You shouldn't have such issues, I don't have the time these days to take on mod repairs but will try and help with advice.

Take your time disassembling the mod and take photos of where the screws go and where the wires attached and at what angle etc.
Cut the wired to the same length as the original as there may not be enough room in the box for more wire.
If you are rusty or new to soldering practice with similar thickness wire, plenty of good youtube videos on soldering.
Take your time, but try not to hold the iron on the solder joint for long, better to have a hotter iron than a longer heat cycle.
Clean each side of the joint with IPA or Meths, sand if oxidised, flux can shift oxidisation but means you need to keep the heat on longer and it makes soldering harder.
Clean any flux off with IPA or meths, I use the off cuts of cotton from wicks and tweezers.

Good luck, it's not that hard and as long as you take care dissembling you have nothing to loose.

[kalbo]

Mar 2, 2019 12:45:45 GMT VapingBad said:

The soldering is easy enough as they come with wires attached or used to, it more how easy it is to physically get at and fit the board. I did one years ago for a friend and it was a nightmare as they changed the size of the inductor (large ferrite ring with wire wrapped around it) and I had to grind the inside of the case, a switch and the inductor to get to to fit. You shouldn't have such issues, I don't have the time these days to take on mod repairs but will try and help with advice.

Take your time disassembling the mod and take photos of where the screws go and where the wires attached and at what angle etc.
Cut the wired to the same length as the original as there may not be enough room in the box for more wire.
If you are rusty or new to soldering practice with similar thickness wire, plenty of good youtube videos on soldering.
Take your time, but try not to hold the iron on the solder joint for long, better to have a hotter iron than a longer heat cycle.
Clean each side of the joint with IPA or Meths, sand if oxidised, flux can shift oxidisation but means you need to keep the heat on longer and it makes soldering harder.
Clean any flux off with IPA or meths, I use the off cuts of cotton from wicks and tweezers.

Good luck, it's not that hard and as long as you take care dissembling you have nothing to loose.

Thanks mate, it looks pretty straightforward, but so is putting in the battery the right way round and I still managed to mess that up lol.
Thank you, I think your advice about taking a picture first is solid, I'll do that for sure 👍🏻