Dumping some authorization tokens here. I need someone to use Fiddler's AutoResponder to test offline login and flashing. Please do not PM me with the password, if you have a bricked device, please try setting up Fiddler's AutoResponder to see if login works, and consequently flashing.
Request #1 User Login
Request
POST
https://service-sg.myoppo.com/api/tools/login HTTP/1.1
Content-Type: application/x-www-form-urlencoded
User-Agent: MsmDownloadTool_v2.0.69_oneplus
Host: service-sg.myoppo.com
Content-Length: 853
Cache-Control: no-cache
app_id=TOOL×tamp=1663686290&sign=3ba67700dd28f80f54fe341666c8a916&s_msg=VTYOEJTcFl0A7lBugQohN7hraQ69X2qfu4C1K4oCApYLcBMrC5w0HzQuHBAt%2FT7A
DY96zfMdbawA0JRFTNrYR1baZofuzfTX%2BkCmRqhOScNW6faPDPTQrmqlyUSbekLp
%2BcGuNyc4IJfn%2BlfyFIAtlglhda058cssD6bln6DyjBZwZxvBo9hCvTgughsX67IT
yYjXQ87rc%2Fua7mhsNs0bZi5UCx5il7CmF58gPOPOATKC6SV6Cwgl%2FpV1LMXV8E1%2F
P9BwdLFlQZinbdxLL3hsaGVlaOB%2B8n7P939bWcMZaSXZ4zdspxoT65j7t7oFtzte
SYsM7JqqawznCaYVzZGawaq9LHJOlkhi4eBCH632HhqA0DMIjj9Dvq8kRK%2Bg1ElM
2uIqq5Zl%2F9AQDxxlBLO%2B6l5SdyYjLaRgKQenCDfA9j9gJKb8TAlrenyc1vOQWf49
VHQCR4a2lizrvMgg%2BFM1dEPnAZQbRqK6zfY0sTjkQYxtu4%2FG4Ogn84eGX5Ttjb8k
IzjtGoVVyUEw2XeDyLyBfZIoNLB5w9n0mC0ZNrJtDlvsKnB1lwn4D783Q%2Bj%2BtK28
sYJW5g%2BtkWV%2Fzcz%2FBeOsx8zSmVWexlTDkDmCd6bC4LIZrOUqA8p6sZ0ylpWkVUTv
8PeTyYV7Zqsk1Ba3ZYnS3HpXh52d43pe49tNgl5gkUc%3D&s_msg_md_5=ff208e0ddfdb2e762c5f102f7fa8da95
Response
HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Content-Length: 521
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.5
X-AspNet-Version: 4.0.30319
Date: Tue, 20 Sep 2022 15:04:51 GMT
{"Data":{"response":{"message":"0000","token":"db67f796-f52a-4e6a-9009-b5c862a11a0f","status":"0","countryname":"EG","usertype":"7","signData":"Y4/hX/0r6/eeIcIh8l4mZSEp0Q91t5ea3PS91BPc6DoRwY5wkIIVhDIMCE0bvtjf+eF2LvhpHGP6/YUmbxet7wpFXwU4O/816SJe6v/4PDGm5s6ea+uuGaJhuOR2l1cfwexuB8Avajk3LyWoz7K7rL3wsUEqvG5tPk+YR8yP+9Fpm1zJnVhxSBAZoPNVFXYNX1oh2wOPcTdK/DtDo9dKt0QCdbugC2nyT25S+Ax6e+FyqgHCWWIn6zqs29mU3R52wtdMdDk9LSkrpMsMakB/kDvyUOzqX66NrZYL48YOQtqj2q2tSwk6D+uWUw6jZPXgEKXsAAvklySi9KvJJMTyEA=="}},"ErrorCode":0,"Message":null}
Request #2 Second Stage Token Verification
Request
https://service-sg.myoppo.com/api/tools/cloud_validate HTTP/1.1
Content-Type: application/x-www-form-urlencoded
User-Agent: MsmDownloadTool_v2.0.69_oneplus
Host: service-sg.myoppo.com
Content-Length: 137
Cache-Control: no-cache
app_id=TOOL×tamp=1663686291&sign=f74a758c15ae34fa098e4ec847ac3401&token=db67f796-f52a-4e6a-9009-b5c862a11a0f&random=aEkwJZYT6cd4COoL
Response
HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Content-Length: 84
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.5
X-AspNet-Version: 4.0.30319
Date: Tue, 20 Sep 2022 15:04:53 GMT
{"Data":{"status":1,"message":"invalid","signData":""},"ErrorCode":0,"Message":null}
www.gsmmafia.com
that Oppo/OnePlus pulled with literally going from "Developer Friendly" to "We'll eat your soul before we allow consumer modifications !" 
I am officially done with this company, and I truly hope a good 20% of their customer base feels the same, because the only way they will reverse their ignorant position , rivaling Apple IOS level lunacy, is if their yearly bonus checks are a few zeros short, and sales drop. (Shouldn't be a problem because T-Mobile just loosened the reigns and allowed Verizon to begin pre ordering the 10R for next year... So NA will at least have 2 major carriers .... But I don't think it will help sales ... Verizon is the Hitler Regime of Bootloader and device unlocking... They might go as far as to request an official Red/Black design with little bands around the top! Lol.
@xuanhoang1811
