860 EVO Firmware RVT04B6Q

[LifeCycles_]

I have an 860 EVO 500 GB currently on Firmware RVT03B6Q with an option to upgrade to RVT04B6Q, can anyone tell me what's changed, if it's worth upgrading or where I can find notes on this new firmware version, thanks! 

Steps already tried to locate firmware changes:

Magician Software

Google

Reddit

Discord

Twitter

Chat

Phone support 

(each platform is clueless and suggests to contact the next)

[user31bSrGUTyC]

I've updated to RVT04B6Q and experienced severe performance regression. When downloading files (ex. steam library updating) the drive goes up to 100% and my system slows to a crawl. Never experienced that in RVT03B6Q firmware. Hopefully this will get fixed ASAP.

[LifeCycles_]

Thanks for sharing, your feedback is the only known experience with RVT04B6Q to my knowledge. 

[Dandy83]

I have failed Windows 10 start after upgrade to bvt04b6q. It starts with the attempt to recover windows which finally fails even trying to recover from the windows recovery 2 points.

[edstyler]

I had just updated firmware on my Samsung 860 Evo to RVT04B6Q, and write performance dropped from 550 to 300-310Mbps.. so this firmware broke the performance of SSD seriously.

I tested 10times, restarted PC, trim is enabled.. really annoying.

[LifeCycles_ · Accepted solution]

Here is the response I recieved from Samsung when I asked what changes this firmware contains. I find it fishy they they themselves don't even know what's going on. It's unbelievable that this was a response from samsungmemorysupport@sea.samsung.com  

"Hello -----,

Thank you for contacting Samsung Support. As far as we are aware, the 860 Evo Firmware Revision RVT04B6Q adds compatibility to the drive with some older systems."

[edstyler]

After 2 hours of usage, I tested again, and now the speed is normal as it should be (562/532MB).
I didn't notice any other issues. So maybe it's a process of firmware update.

[LifeCycles_]

I'm happy to hear that you're not experiencing any problems, thank you for sharing.

[userda4kHwdOqi]

I get this error failed to update firmware on the selected drive.

[user5qL9ksEsw7]

I have same problem. Week ago i upgraded firmware. Before upgrade ~500 Mb/sec write or read. And now I have ~250 Mb/sec write and read. What can I do?