[Android Q&A, Help & Troubleshooting] flairepathos.info:
So Ive been playing around with doogees new firmware and I discovered

Warning : Never pay a cent for your stock firmware no matter how desperate you are there is a free solution somewhere on the internet

NOTE: I will not be held responsible for bricked devices, You flash mods as a choice and when modding values use google and learn how those values work before modifying if dont understand look at more webpages before your final decision.

1. The Doogee y9 plus and the Doogee N20 and Umidigi A5 pro(check commits) are the exact same phone but just with different features and settings

2.The doogee variants have been coded mishmashingly-some of the props are loaded from vendor and some from system and from both, then if a value is changed on one you have to change the other otherwise there will be boot fail/boot fail_critical (bootloop).

Both: Exact same hardware , the rooting and flashing method is exactly the same (umidigi just has different partition Tables/ PMT)

If you change a parameter you have to change it in vendor partion to make it stay forever or cause less system internal conflict

Dogge Y9 plus release: More polished and more locked down (boot, security, rooting etc)

Has 3 releases eea, user and Russia (user version worked best)

Doogee N20 release : the Development build : has missing features, some features which are enabled but don't work because of code and missing hardware (nfc - You can manually add one that is compatiable and edit vendor,system boot partions (theres maybe 4 which specify nfc app(disabled by vendor or system ) and hardware)... )

Has an unknown number release of versions (doogee moderators decided to remove links to some of the official copies on their forum in 2019-late 2019 (This was when they were changing their business model from you get to root and do what you want with your device without voiding warranty , then 2021 completely removed all traces of it but not the actual files (i dont know where these are the mod I was in touch with got removed and blocked - He "violated policy or knew too much , He communicated with developers))

I only know of 2 existing public releases early 2019 and late 2019 files

comparisons-

The doogee N20 firmware is more open and you can flash custom roms(gsi treble arm64 ab) with it, the y9 you can but you'll run into bootloops (a working on I found was the pixelexperience10 gsi arm64 ab

The doogee y9 release can block you from flashing the doogee n20 firmware, aaawthich is why so many of you found yourself with a bricked device but didnt know why it wasn't flashing the n20 stock rom (from need rom and other sites), The Y9 plus stock rom is found on ...

(other notes) The doogee forum will run away from anything related to the doogee y9plus/ n20 because its an OP phone and it was easy for their developers to build on it to compete with the current medium-high to high end devices) and upgrade to perform better (but the comppany run by all money hungry dogs but hey they got to make a living too :/)

Others to be added later

To NEVER AGAIN BRICK THE DEVICE(except when OC / fall) :

TWRP

Stock firmware (N20 and Y9 plus, if one fails to flash the other one will flash no hassle)

SP Flash tools, when in bootloader mode(phone off) your phone will install the drivers you need

If you're rooting via magisk have a copy of the n20 and y9 plus boot images modded by magisk app (I no try SuperUser or it failed once or i intalled it incorrectlyand i said screw it)

To find the working doogee y9 plus doogee n20 stock firmware respectively in that order:

Halab tech support, anywhere on google just search doogee n20 firmware or stock rom

if anything happens with the halab tech support or youre asked to pay for the stock firmware, I have backed up copies of the releases and you can contact me(toggle signature or open my profile ) within 7 days I will give you link to download

else

search doogee y9 plus firmware in chinese (traditional) if remember correctly

Mods Updates(currently magisk independant ned twrp and pc, i dont know how to make twrp flashable zips )

THe seccond attached image is about the gpu used, it a bad gpu but in my mod I will underclock but run at higher minimum lock speeds

Trying to remove gaming fps cap, under my tests openl performed best with consistent 30fps but it was capped to 30 fps (thats why pubg and COD only offer 30 fps max the vulkan driver was just bad but had no fps cap or 60fps. weirdly the system ui and launcher had gone up to 77 fps consistently to 91 before capping dropped it back to 60fps but this was with forced unlocked fps, With a burst fps divisor it jumped to 101 fps at a point

Increased CPU clock speeds or I'll just make custom performance kernel parameter and make it the default setting, increase minimun clock speeds for both clusters to maybe 1000mhz and reduce maximum clock speeds for all clusters by maybe 100 to 300mhz

Enabling the root switch or possibly bypassing user limitations (engineer flavor, or Android Test mode(i can't find the ATM apps so far,unless the options will be in settings)

More coming soon

If it helped you in any way please consider liking post and donating ( www.paypal.me/xleage ). Donation link also in my profile

Happy Unbricking and modding :) . I've waited at least 2 years to say this lol