Hi everyone,

After multiple attemps and research I cannot fix the following problem on my Latitude 7490: I'd like to upgrade the 256 Gb Toshiba SSD with a 1TB Kingston Nvme SSD. So I cloned/ reinstalled windows 10 on the new SSD via many differents methods,  and either it doesn't boot, or Windows boots normally on the new SSD (inserted inside), and everything seems to be working fine BUT I am unable to wake up from sleep mode : only the power button is lighted and a black screen remains. I tried to fix this with the methods advised by Dell support (https://www.youtube.com/watch?v=WJIEcX0ExfE), but it didn't work. I am using the sleep mode quite a lot so I wouldn't like to loose this functionnality.

Here is the details of my attemps :

- Partition clone with Easus Backupper : boots but not able to wake from sleep 

- System clone with Easus Backupper : doesn't boot

- Clone with Clonezilla : doesn't boot

- System recovery from image with AOMEI Backupper : boots but not able to wake from sleep

- System recovery from image with Acronis True image : boots but not able to wake from sleep 

My first hypothesis is that I may do something wrong with the reinstallation / cloning of windows, but I don't know what. Between my attemps I was only deleting the partitions with Easus Partition master, so I though maybe this is not clean enough for a proper reinstallation, so for the last try, I cleaned more in depth with another option of Easus partition master (data erase, which they say is almost equivalent to secure clean), in vain. Should I go for a secure clean and reinstall or wouldn't it change much? 

Second hypothesis : I read that you can change the disk driver in the BIOS from RAID to AHCI to enhance the performances of the SSD. But would this have something to do with my sleep problem?

But maybe there is a totally different problem which I cannot see as I am definitely not an expert.

Many thanks for your help,

Gabriel