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Humax hdd not recognised

I had the same problem in July during the hot weather. Just got round to solving the problem today. Tried replacing the drive and still had problem. I was a bit sceptical about heating the chip but decided to give it a go. After a few minutes the fan came on then a few minutes later the screen went blank and the box restarted and the HDD was recognised and recordings still there!
 
At temperatures you could get it to without frying it? Lead-free solder melts at around 220ºC and leaded solder at around 185ºC. Seems unlikely to me.

However, that said, unleaded solder is more prone to growing whiskers than leaded solder, so perhaps heating it gets rid of short circuits due to whisker growth.
 
It seems to be a cheap SATA connector on the main board that causes the No hard drive problem. I've bought over a dozen 1000S boxes, all with the same fault of not recognising the hard drive. The main board SATA connector was corroded on every one. Carefully scraping off the residue form the contacts on the socket and cable fixed every one. I assume Humax had a large batch of connectors with very bad gold plating which over time failed. I've resold all of the repaired boxes with no complaints. I guess the "tech" at the repair center just cleans the contacts and charges £70, which I find ridiculous for a 2 minute contact clean!
 
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