June 18th, 2023, 6:44
June 18th, 2023, 8:00
June 18th, 2023, 8:04
melvin wrote:Show your reading settings
June 18th, 2023, 8:26
June 18th, 2023, 8:52
melvin wrote:NAND reading settings
June 18th, 2023, 10:11
June 18th, 2023, 12:11
melvin wrote:Did you check with Rusolut if your config is right? If it's not, ECC will not work properly. Yes, there is still problem with their maps. You can reread dumps few times and still get correctable ones. I already wrote to the support that amount of uncorrected pages can be different in every pass.
As for GPU first option - CUDA should work fine. It cannot be used when CPU is selected.
June 18th, 2023, 12:38
June 18th, 2023, 12:45
melvin wrote:I was comparing both tools and how they solve Sandisk based SSDs in this video.
Don't know why you have so many options in GPU but i think there may be a problem with drivers. Also having two GPUs might not be the best option. You can always ask Rusolut why RR doesn't work good in your case. Might be that chips were overheated or just in bad condition. Check in FE.
Also i use GPU only for correction. Reread only on CPU.
You can always use FE and it's ready solution. Read one chip, find proper RR, read all memories few times with different RR, ECC combine and save the image.
June 18th, 2023, 12:53
melvin wrote:I was comparing both tools and how they solve Sandisk based SSDs in this video.
Don't know why you have so many options in GPU but i think there may be a problem with drivers. Also having two GPUs might not be the best option. You can always ask Rusolut why RR doesn't work good in your case. Might be that chips were overheated or just in bad condition. Check in FE.
Also i use GPU only for correction. Reread only on CPU.
You can always use FE and it's ready solution. Read one chip, find proper RR, read all memories few times with different RR, ECC combine and save the image.
June 18th, 2023, 12:54
June 18th, 2023, 12:58
melvin wrote:support.rusolut.com/portal/en/kb/articles/why-should-you-throw-away-your-hot-air-station-for-unsoldering
If you had problem removing one, you probably did the same with all chips. I'm not saying you damaged them, but constant heating is not good.
Internal GPU should work too. Don't know why you have two, and at least three drivers.
June 18th, 2023, 13:54
June 18th, 2023, 16:37
June 18th, 2023, 23:07
melvin wrote:Yes, i use hotair so far but i remove chips in less than 20 seconds in most of cases with 300-320 Celsius with good flux.
If your chips blasted than you did something really wrong. They should be heated slowly with IR. The point is that IR heats metal pads much faster so you don't need to heat the whole chip for a long time.
June 18th, 2023, 23:17
arvika wrote:This chips mostly need one read with correct settings to get good ECC, sometimes need two pass. And several passes if I get already desoldered chip by someone else. Overheat have big influence to quality. If you use hotair like PT, Ayoue or similar class, better use it for heat shrinks, not for desoldering chips, because overheat is very high possible.
June 18th, 2023, 23:23
June 18th, 2023, 23:24
June 19th, 2023, 11:10
melvin wrote:Buy a new SSD, desolder the chips and check how good/bad the read is. It will tell you everything. You can also check on live view with XOR and ECC connected to get the best reading settings so there are not that many corrections needed.
June 19th, 2023, 12:44
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