Has anyone successfully booted the "B+" model of RPi3 via any of 13.0-RC3/4/5?

[Mark Millard]

I ask because:

https://github.com/raspberrypi/firmware/commits/master

shows a 2021-Mar-23 firmware update described as:

"firmware: board-info: Fix memsize on 3B+"

and 13.0-RC2 and before had other, more general
problems from pre-2021-Feb-25 firmware.

A sufficiently recent snapshot build of main [14]
is also a good test but it is more difficult to check
if it is recent enough (compared to just referencing
the 13.0-RC* text):

# strings /boot/*/start4.elf | grep VC_BUILD_ID_
VC_BUILD_ID_USER: dom
VC_BUILD_ID_TIME: 12:10:40
VC_BUILD_ID_VARIANT: start
VC_BUILD_ID_TIME: Feb 25 2021
VC_BUILD_ID_BRANCH: bcm2711_2
VC_BUILD_ID_HOSTNAME: buildbot
VC_BUILD_ID_PLATFORM: raspberrypi_linux
VC_BUILD_ID_VERSION: 564e5f9b852b23a330b1764bcf0b2d022a20afd0 (clean)

(But the /boot/... style path presumes the boot was
successful. Other means of mounting the media would
otherwise be involved.)

I do not have access to any old-style-revision code
0010 or 0013 RPi*'s (so B+: with 512 MiByte RAM) or
new-style-revision code a020d3 RPi*'s (so: B+ with 1
GiByte RAM). (These are the RPi3B's that have a "+"
after the B: RPi3B+. "+" is not "and later" here.)

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)