Somewhere in the menu, there are two settings that need to be switched.
★ HOW TO ENABLE AUTO-FIRE ★
1) Open main menu by pushing the power button and + button at same time
2) Go to Vaping menu
3) Scroll down to "AutoFi" and toggle it ON
4) Set "ATime" to infinity
To engage cruise mode simply press the power button for a quick moment and then release, the power should now stay on until you hit the main button again
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★ OTHER SETTINGS ★
To enable 0.1 watt adjustments:
1) Open main menu by pushing the power button and + button at same time
2) Go to Interface menu
3) Toggle OFF the "1Watt" setting
To enable stealth mode if you get the "device hot" error:
Hold down the power button and the - button at the same time for one second. This will turn off the screen but still allow full functionality of the mod.
To raise temp sensor if you get the "device hot" error:
Open menu, click on Expert, click on MAX, raise value to 99ºc (210ºf).
If you still get any errors on your mod try reinstalling the latest firmware again, this has worked for a few people to fix the issue.
If things are working properly, the cruise mode on 10.5 will have about a 1w fluctuation but still should heat up properly. You shouldn't need to outsmart the MOD with a special needs temp profile to get your G to work, Hope this helps!