WP 10, will it work on my Lumia 620?

[Windows Central Question]

WP 10, will it work on my lumia 620?

So exited, but afraid after read some blogs about the update...

 

[charlatan1978]

Re: WP 10, will it work on my lumia 620?

It should work.
However from my experience, W10M doesn't run great on older (512MB) devices.
It was very slow on my Lumia 625.
Runs great though on my Lumia 930 and 535.

 

[suppax]

old versions are slow, last one .164 seems more decent

 

[Exotic Hadron]

I attempted to upgrade to Windows 10 through Windows Insider app and all of a sudden during the upgrade procedure the phone's screen went black with sad grid on it: ;-)

Then the phone fell into the boot loop issue:
1. Starting
2. Proceeding with upgrade.
3. Sad smiley.
4. Restart and back to step 1.

Luckily I was able to recover using Microsoft Device Recovery Tool. But that required multiple steps because on the first step the phone failed to flash with Windows 8.1 and its screen turned black. I removed the battery and attempted to reflash bootstrapper using the The phone wasn't recognized button in the recovery tool. After several attempts to flash bootstrapper (5 runs were unsuccessful), the tool finally flashed phone's boot strapper part of firmware and I was able to flash the 1.4 Gbyte ROM.
Has any one had luck upgrading to Windows 10 on Lumia 620 lately? I mean, builds 218, 242?