WP 34S will not turn on

[jebem]

I searched like this:
JTAG 30B 20B 34S 31S site:www.hpmuseum.org

and it came out with a few threads on 20B/30B machines:
HP30b flashed with WP31 no longer responding
Fully-modified 20b
HP30B/20B Repurposing Project
[WP34S] Flashing Issues
[WP 34S] I finally bricked it

In my humble opinion, unless one is willing to deep dive on these micro-controller chips and therefore spend money on a JATG developer system, probably it would cost less money (and time) to just buy another calculator.


On a different note concerning HP 30B current consumption:
The values you measured are way above what is expected here.
Maximum current values when operating or when flashing the machine are just a little above 20mA (0.02 Amp), no matter what state the calculator is in.

If you measured currents in the hundreds of milliampere, then definitely one or more components are defective in the calculator. Those current values are like a short circuit for any CR2032 coin cell battery.