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comma four: UK eSIM requires eUICC update #38455

Description

@alxwest

Describe the bug

Heya, I'm in the UK and have a SMARTY/Three eSIM (use the account for other IOT devices) and the profiles authenticate and download successfully, but the onboard Thales eUICC rejects them during installation:

bppCommandId: 5 (loadProfileElements)
errorReason: 12 (installFailedDueToPEProcessingError)

This also fails using upstream lpac outside openpilot. Reinstalling AGNOS 18.5 made no difference.

eUICC firmware: 66.81.2
Profile Package: 2.1.0
SGP.22: 2.2.0

Others have reported the exact error; eSIM.me support identified it as an eUICC firmware compatibility issue and proposed a firmware fix:
https://cheerio-the-bear.hatenablog.com/entry/2022/03/04/172109

Another report shows the same eUICC accepting one carrier while rejecting another with the exact 5/12 error:
https://www.telefon-treff.de/forum/thread/9963440-esim-me-die-esim-für-alle/?postID=10066078

Does comma have a signed Thales eUICC/COS firmware update, or a newer eUICC replacement option?

Provide a route where the issue occurs

NA

openpilot version

0.11.1

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