MT7610E drive installation to VR200, Deck works

Installing and Using OpenWrt
1

Hi guys,

According to the main page of VR200 deck and 2.4 GHz wifi unsupported, you know,

Good news, I can phone call while internet connection fully active. I checked a few times no problem.:heavy_check_mark:
The connection linkage DSL line goes splitter and separates Router and Deck. I am grateful :slight_smile: :dancing_men:

Bad news, I can't enable wifi 5Ghz :question: There is nothing about wifi under network section.

I searched my router's support for MT7610E driver from git.openwrt.org

Thanks to Kevin Schmidt and Hauke Mehrtens shared a good way to enable 5Ghz wifi but I don't know how can I use this. What is this .dtsi extension :dizzy_face: .

I tried to install few packages in this page from the software section: kmod-mt76x0e wpad-basic kmod-usb-dwc2 kmod-usb-ledtrig-usbport
But nothing happened network tab on Luci interface.

I only found related MT76 on System Log

Thu Aug 20 21:20:25 2020 kern.info kernel: [   12.868796] mt76x0e 0000:02:00.0: ASIC revision: 76100002
Thu Aug 20 21:20:25 2020 kern.info kernel: [   12.942359] mt76x0e 0000:02:00.0: Firmware Version: 0.1.00
Thu Aug 20 21:20:25 2020 kern.err kernel: [   13.196695] mt76x0e 0000:02:00.0: driver does not support default EEPROM
Thu Aug 20 21:20:25 2020 kern.warn kernel: [   13.202197] mt76x0e: probe of 0000:02:00.0 failed with error -22

So do u have any recommendation for using 5 GHz wifi Official or Unofficial way :question:
Could you any help :question:

3

I've seen this topic now.

@slh Could you explain, How can I able to enable 5 GHz? Is there any way?

4

Apropos 5G I can not prompt did not check
Has left the factory software

5

Okay, Thanks for answer :slight_smile:

6

I have WiFi 5GHz working on VR200 using the latest snapshot build (r14418-d0f295837a) - assume this is thanks to the work of Kevin Schmidt and Hauke Mehrtens. Not sure when this will be in a stable release though, hopefully the next one?

7

I hope so, using OpenWrt 19.07.3 r11063-85e04e9f46 version. Did u update via system > software > updates.
I did via the above way but Luci interface freezed badly then had to soft reset. Due to I am staying a little bit away from this way :blush:
btw could you share status of mt76x0e at system log

8

I installed from TFTP via the bootloader / UART header, then had to install LuCI manually as it's not in the snapshot builds.

Status of mt76x0e from dmesg (Kernel Log):

[   15.226924] mt76x0e 0000:02:00.0: enabling device (0000 -> 0002)
[   15.233219] mt76x0e 0000:02:00.0: ASIC revision: 76100002
[   15.243342] mt76x0e 0000:02:00.0: Firmware Version: 0.1.00
[   15.479249] mt76x0e 0000:02:00.0: EEPROM ver:01 fae:00
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9

There is a new update on routers page; I updated to new version
OpenWrt 19.07.3 r11063-85e04e9f46 -->
OpenWrt 19.07.4 r11208-ce6496d796
and mannually were installed mt76x0e but I getting same error

It seems to wait next uptate

10

I install below programs on latest 19.07.07 release but any wifi doesn't occurred under Network tab

opkg update
opkg install kmod-mt76x0e wpad-mini pciutils
reboot

OpenWrt 19.07.7 r11306-c4a6851c72 / LuCI openwrt-19.07 branch git-21.044.30835-34e0d65
what have to additionally?

11

@sc84647 Sorry for interruption but I have to ask where u get the latest snapshot's version.
Could u explain more clearly?

Because, I installed below packages but still I don't have wireless tab on Luci interface.
How did u enable wireless module.

12

https://downloads.openwrt.org/snapshots/

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13

Thank you, I'll try

15

Hi, were you able to solve the issue with 5G driver?

16

I didn't try this snapshot yet. But whenever go family home I'll try.
Former snapshot (RC-2) works, but sometimes lost connection. Maybe this release(RC-3) will be solved.

17

Thanks.. I will try as well.

Update: I tried with the above snapshot, and like usual all i get is the same old error.

Sun Jun 13 22:02:27 2021 kern.err kernel: [    9.984738] mt76x0e 0000:01:00.0: card - bus=0x1, slot = 0x0 irq=4
Sun Jun 13 22:02:27 2021 kern.info kernel: [    9.991398] mt76x0e 0000:01:00.0: ASIC revision: 76100002
Sun Jun 13 22:02:27 2021 kern.info kernel: [   10.014797] mt76x0e 0000:01:00.0: Firmware Version: 0.1.00
Sun Jun 13 22:02:27 2021 user.err kernel: [   10.107464] urngd: jent-rng init failed, err: 2
Sun Jun 13 22:02:27 2021 kern.err kernel: [   10.160894] mt76x0e 0000:01:00.0: EEPROM data check failed: 7662
Sun Jun 13 22:02:27 2021 kern.err kernel: [   10.179491] mt76x0e 0000:01:00.0: driver does not support default EEPROM
Sun Jun 13 22:02:27 2021 kern.warn kernel: [   10.186559] mt76x0e: probe of 0000:01:00.0 failed with error -22
18

These messages means that "radio" partition at offset 0 contain incorrect EEPROM data. It's possible that it contain EEPROM for mt7662 wifi chipset.
Just for test you can backup radio partition and write any mt7610 refferance eeprom data from Mediatek SDK.
You can get eeprom from Padavan project

19

Thanks for your reply, first of all my device is Tp link archer c20 v1, 2.4ghz works fine only 5ghz radio is not showing up under wireless.
I backed up the radio. Which eeprom should i write?, i believe i need to write for mt7610e, which is the chip for 5ghz. there are two files available on the link above MT7610E-V10-FEM.bin and MT7612E_EEPROM.bin, which one should i try?

20

mt7610 and mt7612 are different wifi chipsets so only MT7610E-V10-FEM.bin suit you.
And for tp-link archer c20 v1 EEPROM offset is 0x8000

21

OK thanks, so just to be clear, i need to replace radio.bin(backed up) with MT7610E-V10-FEM.bin file correct? and start writing at offset 0x8000... is that right?

22

You need to overwrite data of radio partition at position 0x8000 with data of MT7610E-V10-FEM.bin file. In unix command line it may be done as follow:

dd if=MT7610E-V10-FEM.bin of=radio.bin bs=1 seek=$((0x8000)) conv=notrunc

where radio.bin is backup copy of radio partition.
Then write this new radio.bin file back to flash. To unlock read only radio partition use kmod-mtd-rw package. Something like:

opkg update
opkg install kmod-mtd-rw
insmod mtd-rw i_want_a_brick=1
mtd unlock radio
mtd write radio.bin radio

After reboot mt7610 driver will read correct EEPROM.

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