/OT
I think it is a little bit Off-Topic for the Homey Community, but starting is from the Topic [HowTo] Homey Pro (Early 2023) - Resize user Partition on eMMC
This now is a Topic on it’s own for the daredevils that can solder …
[Modding][OT] Replacing a eMMC chip on a CM4 module
But Yes, probably Homey first becomes very slow, especially at boot with more than ~100 apps ? and then needs more space on Flash, even with a 8 GB Memory .
Hmm, maybe not so much overkill if it also has ‘load balancing’.
And I know. I’m a amateur solder. But has some good results with my simple mph30 (with community firmware). So still some hope I can exchange the chip with this tool
You mean Miniware MHP30 SMD Rework Hot Plate ? There might be problem with the temperature and also you would need BGA reballing stencil / reballing platform EMMC BGA153 or how it’s called together with BGA balls (Sn63Pb37, 0.3mm size) for reballing…and courage, but if your CM4 is dead, you have not much to loose
Haha, that was exactly my idea. Not so much to loose and I already have 2 CM4 modules that are not working anymore (flash issue). But… the flash module is a little bit expensive on itself. I will try to find a smaller one for experimental replacement
And yes, that one. I have bought it for one project (my primary soldering station was not enough). But surprised how ‘easy’ it is to desolder and solder a chip from/to a board.
It was about maximum temperature and duration applied but can’t find exactly the statement, so just from another source : When soldering,please make sure that the temperature for lead-free /No Pb BGA chips is 245℃-260℃(Maximum),Leaded/Pb BGA chips 180℃-205℃(Maximum).
So in your case, I guess you are applying heat from the bottom of PCB ? Might be more gentle than with hot air station… when / if you will doing it, definitively document for community
was by Ivan Kuleshov replacing the eMMC chip self.
