Monthly Archives: November 2022

VoCore2: Use UBOOT Latest Version

Currently latest version of uboot is working well on VoCore2. But because of the partition is not big enough for all uboot features, we have to do such cut off.

We upload the config to

Free free to have a try 🙂

1. This is for 192KB partition of uboot, for mainline version you will need to adjust the uboot partition size to 312KB, but that will also need to modify Linux partition DTS file.

This define is in vocore2_defconfig of uboot: CONFIG_MTDPARTS_DEFAULT=”spi0.0:192k(u-boot),64k(env),64k(factory),-(kernel)”

2. uboot will not boot Linux after install, you will need to setup, run the following uboot command.

setenv bootcmd 'sf probe; sf read ${loadaddr} 0x0 0x50000 0x200000; bootm;'

mainline uboot support

Now VoCore2 has mainline uboot available, but need more testing to verify that everything is stable.

if you need it, see below:

before replace uboot ,you need read how to fix dead uboot:

flash layout difference of mainline uboot and ralink uboot:

mainline uboot:


uboot from mtk:


mainline uboot’s layout can include more code in uboot, but it not compatible with the mtk’s uboot.

if you need 192k mainline uboot, please use uboot/vocore2_defconfig to compile maineline uboot:

cp path/to/thisrepo/uboot/vocore2_defconfig path/to/mainlineubootsrc/.config

note: before replace uboot, you must ensure your ‘u-boot-with-spl.bin’ size is < 192k

To support mainline of the uboot, also need to modify Linux kernel partition DTS. openwrt/target/linux/ramips/dts/mt7628an_vocore_vocore2.dts

                        partition@0 {
                                label = "u-boot";
                                reg = <0x0 0x4e000>;

                        partition@30000 {
                                label = "u-boot-env";
                                reg = <0x30000 0x1000>;

                        factory: partition@40000 {
                                label = "factory";
                                reg = <0x40000 0x1000>;

PS: before do anything change to your VoCore, better to backup the hole flash to avoid any calibrate data lost.

PayPal locked our account today

PayPal just locked our account this morning, no reason provide and no idea, they required us submit a lot of paperwork to prove our business is real. We have submitted in first time but seems like the review still need three days.

Possible reason: our sales agent is locked at home because of virus and their home network is very slow to login PayPal, so around one week we can not fill trace on PayPal(but we do have trace on our site…)

For recently order, please directly email to, so we have to use old way to handle this, email and wire transfer to our company account.

If any other good third party to replace PayPal please suggest. 🙂 Sometimes we are just too lazy to take action but seems like this time we have to move, PayPal is very expansive and not friendly to seller anymore.

PS: at Nov.20, our account is unlocked. But the our stock distinct is locked because of COVID…It is so hard this year. :'(