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| inbox:toh:xiaomi:mi_wifi_range_extender_ac1200_model_ra75 [2022/08/19 21:58] – [Tags] 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 ====== | ||
| - | ~~NOTOC~~ | ||
| - | This is compact, wall-wart type range extender | + | {{: |
| - | Installation is done through an app, there is no HTML UI and no easy way to install OpenWRT yet. | + | |
| - | {{: | + | This is a compact, wall-wart type range extender |
| + | Installation is done through an app, there is no HTML UI. | ||
| + | If you don't mind some soldering, this is a very capable hardware for the price that runs OpenWrt just fine. | ||
| + | Major hardware limitations (if you don't count the form factor' | ||
| - | ===== OpenWrt support | + | Warning: There is a newer version on the market, Model RC04. This looks identical, but is quite a bit harder to install. Avoid. |
| + | |||
| + | ===== Supported Versions | ||
| + | <!-- ToH: { | ||
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| + | Supported in snapshots, since 2023-01-14. | ||
| - | This is almost the same hardware as [[: | ||
| - | Note: Chinese version, not the international one! | ||
| - | Somewhat cleaner support is upcoming. | ||
| 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. | ||
| - | ===== Supporting activities ===== | + | This is almost the same hardware as [[: |
| - | OpenWrt forum thread: https:// | + | Please note that right now, there is no way back to the stock firmware. (For lack of trying, and why would anybody?) |
| + | 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, | ||
| - | ===== Experimental firmware ===== | + | ** Supporting activities ** |
| - | Use the firmware from [[:toh:xiaomi: | + | OpenWrt forum thread: https:// |
| + | ===== Hardware Highlights ===== | ||
| + | <!-- ToH: { | ||
| + | " | ||
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| - | ===== Hardware highlights | + | ===== Installation |
| - | ^ CPU ^ Ram ^ Flash ^ Network | + | <!-- ToH: { |
| - | | MT7628DAN @ 580 MHz | 64 MiB | 16 MiB | 1x 100 | b/g/n/ac 2x2 Dual band | no | Yes | ? | | + | " |
| + | " | ||
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| + | } --> | ||
| + | ** Alternative firmware ** | ||
| + | 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). | ||
| - | /*** if info available: uncomment | + | Buttons |
| - | ===== Installation ===== | + | It follows that you have to disable the firewall or adjust the network config from the serial console, otherwise the device will be inacessible. |
| - | - → [[: | + | |
| - | - → [[docs: | + | |
| - | - → [[: | + | |
| ==== Installing OpenWrt ==== | ==== Installing OpenWrt ==== | ||
| - | ***/ | + | Only known way to install |
| + | There is one screw under the barcode, right side. Header is standard. See FCC DB for photos. | ||
| + | From there, its rather easy: | ||
| + | |||
| + | After Boot, U-Boot will prompt for: | ||
| + | <webcode name=" | ||
| + | Please choose the operation: | ||
| + | 1: Load system code to SDRAM via TFTP. | ||
| + | 2: Load system code then write to Flash via TFTP. | ||
| + | 3: Boot system code via Flash (default). | ||
| + | 4: Entr boot command line interface. | ||
| + | 9: Load Boot Loader code then write to Flash via TFTP. | ||
| + | </ | ||
| + | |||
| + | With 2 (and having an tftp server running), you can flash the new firmware. | ||
| + | Please note that the original firmware has not been yet extracted, so there is no way back! | ||
| - | /*** if info available: uncomment and fill in | ||
| ===== Debricking ===== | ===== Debricking ===== | ||
| -> [[docs: | -> [[docs: | ||
| - | ***/ | + | |
| + | The standard method of debricking common to xiaomi devices work: Hold the reset button while booting to get into a mode where the device will request a signed bootloader via TFTP. But there is currently no known source for an installable stock firmware. | ||
| - | /*** 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' | ||
| - | /*** if info available: uncomment and fill in | ||
| ===== Basic configuration ===== | ===== Basic configuration ===== | ||
| After flashing, proceed with [[docs: | After flashing, proceed with [[docs: | ||
| - | ***/ | ||
| - | |||
| /*** if info available: uncomment and fill in | /*** if info available: uncomment and fill in | ||
| Line 99: | Line 137: | ||
| ^ Vendor | ^ Vendor | ||
| ^ Bootloader | ^ Bootloader | ||
| - | ^ System-On-Chip | + | ^ System-On-Chip |
| ^ CPU/ | ^ CPU/ | ||
| ^ Flash-Chip | ^ Flash-Chip | ||
| Line 105: | Line 143: | ||
| ^ RAM | 64MB | | ^ RAM | 64MB | | ||
| ^ Wireless | ^ Wireless | ||
| - | ^ Ethernet | + | ^ Ethernet |
| ^ Switch | ^ Switch | ||
| ^ USB | none | | ^ USB | none | | ||
| Line 129: | Line 167: | ||
| - | 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. | + | 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: | ||
| Line 843: | Line 882: | ||
| ===== Tags ===== | ===== Tags ===== | ||
| - | {{tag> | + | {{tag> |