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| inbox:toh:xiaomi:mi_wifi_range_extender_ac1200_model_ra75 [2023/01/18 10:39] – [Experimental firmware] jdeisenh | inbox:toh:xiaomi:mi_wifi_range_extender_ac1200_model_ra75 [2024/05/01 20:03] – [Debricking] jdeisenh | ||
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| ====== Xiaomi Mi WiFi Range Extender AC1200 Model RA75 ====== | ====== Xiaomi Mi WiFi Range Extender AC1200 Model RA75 ====== | ||
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| This is a compact, wall-wart type range extender with 2x2 Wifi5 dual band hardware. 20€ in 2022 in Germany, taxes included. | This is a compact, wall-wart type range extender with 2x2 Wifi5 dual band hardware. 20€ in 2022 in Germany, taxes included. | ||
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| Major hardware limitations (if you don't count the form factor' | Major hardware limitations (if you don't count the form factor' | ||
| - | {{:media: | + | Warning: There is a newer version on the market, Model RC04. This looks identical, but is quite a bit harder to install. Avoid. |
| - | ===== OpenWrt support | + | ===== Supported Versions |
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| Supported in snapshots, since 2023-01-14. | Supported in snapshots, since 2023-01-14. | ||
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| This box does not run a HTML UI, it is configured through an app. For this reason, you cannot use OpenWrtInvasion. | This box does not run a HTML UI, it is configured through an app. For this reason, you cannot use OpenWrtInvasion. | ||
| You have to install it by opening the box, soldering an UART connector, connect an UART 3V Interface, flash via shell and TFTP. | You have to install it by opening the box, soldering an UART connector, connect an UART 3V Interface, flash via shell and TFTP. | ||
| - | This is almost the same hardware as [[: | + | This is almost the same hardware as [[: |
| Please note that right now, there is no way back to the stock firmware. (For lack of trying, and why would anybody?) | Please note that right now, there is no way back to the stock firmware. (For lack of trying, and why would anybody?) | ||
| - | ===== Supporting activities | + | |
| + | There seems to be a new version available from 2023 'Model RC04' with a different wifi chip. This is almost identical, but has a newer 5GHz Wifi chip. Unfortunately, | ||
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| + | ** Supporting activities | ||
| OpenWrt forum thread: https:// | OpenWrt forum thread: https:// | ||
| - | ===== Experimental firmware | + | ===== Hardware Highlights |
| - | Since there is currenlty a build problem for the target, a built of r21847-4a444e576f | + | <!-- ToH: { |
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| - | https://drive.google.com/ | + | ===== Installation ===== |
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| + | ** Alternative firmware ** | ||
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| + | If you must or want to run a pre-2022 release version, you can use the one for mi-router-4a-100m. | ||
| + | Warning: (*not* mi-router-4a-100m-intl). | ||
| - | It is also possible to run the release firmware of mi-router-4a-100m (*not* mi-router-4a-100m-intl). | ||
| Buttons and LED definitions are wrong, and the LAN interface does not exist, the only ethernet is the WAN interface). | Buttons and LED definitions are wrong, and the LAN interface does not exist, the only ethernet is the WAN interface). | ||
| It follows that you have to disable the firewall or adjust the network config from the serial console, otherwise the device will be inacessible. | It follows that you have to disable the firewall or adjust the network config from the serial console, otherwise the device will be inacessible. | ||
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| - | ===== Hardware highlights ===== | ||
| - | ^ CPU ^ Ram ^ Flash ^ Network | ||
| - | | MT7628DAN @ 580 MHz | 64 MiB | 16 MiB | 1x 100 | b/g/n/ac 2x2 Dual band | no | Yes | ? | | ||
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| - | ===== Installation ===== | ||
| - | /* | ||
| - | - → [[: | ||
| - | - → [[docs: | ||
| - | - → [[: | ||
| - | */ | ||
| ==== Installing OpenWrt ==== | ==== Installing OpenWrt ==== | ||
| Only known way to install *right now* is the old school way of opening the box, soldering in a UART header, connecting to console. | Only known way to install *right now* is the old school way of opening the box, soldering in a UART header, connecting to console. | ||
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| -> [[docs: | -> [[docs: | ||
| - | As long as you haven' | + | The standard method of debricking common to xiaomi devices |
| - | /*** if info available: uncomment and fill in | ||
| ===== Failsafe mode ===== | ===== Failsafe mode ===== | ||
| -> [[docs: | -> [[docs: | ||
| - | ***/ | ||
| + | Use the hidden reset button near the ethernet connector for failsafe mode, when the led starts blinking fast. The big WPS button on the front doesn' | ||
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| There is a single screw under the barcode label, right side. Removing the screw beneath, you can split the unit into the power supply and the wifi part. The ' | There is a single screw under the barcode label, right side. Removing the screw beneath, you can split the unit into the power supply and the wifi part. The ' | ||
| + | {{: | ||
| ==== Serial ==== | ==== Serial ==== | ||
| -> [[docs: | -> [[docs: | ||
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| ===== Tags ===== | ===== Tags ===== | ||
| - | {{tag> | + | {{tag> |