Hacker News new | ask | show | jobs
by anaphor 1681 days ago
So this blog post covers the 1.0 hardware revision, but I just opened up mine out of curiosity and realized I have the 1.2 revision, which uses the sandisk chip, so everything is different. Not 100% sure which components need to be changed there, but it would be good to figure out the exact instructions for both types.
2 comments

Only the flash chip itself is different. The board layout around that part should be the same
good to know! I was a bit confused by that at first :)
They already moddded a 1.2 here is the result:

>Here are the results on the two PinePhones I modified: [0]

    PinePhone 1.2 pmOS CE (convergence package) with 32GB SanDisk eMMC:
    before 55MB/s, after 125MB/s
    PinePhone 1.0 Braveheart edition with 16GB Kimtigo eMMC:
    before: 80MB/s, after 110MB/s

[0] https://izzo.pro/pinephone-vccq-mod/

They also wrote:

>Adding support for HS400 mode could bring speed improvements, but there is a caveat:

>From the Allwinner A64 SoC datasheet we can see that the eMMC clock is limited to 150MHz in HS200 mode and 100MHz in HS400 mode, so the speed improvements depend on whether it's higher the speed gain from HS400 or the speed penalty from the clock reduction.