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| inbox:toh:xiaomi:mi_wifi_range_extender_ac1200_model_ra75 [2022/08/19 15:48] – [Serial] 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 template is intended to be used via https:// | + | {{:media: |
| - | {{page> | + | This is a compact, wall-wart type range extender with 2x2 Wifi5 dual band hardware. 20€ in 2022 in Germany, taxes included. |
| + | 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' | ||
| - | // | + | Warning: There is a newer version on the market, Model RC04. This looks identical, but is quite a bit harder |
| - | /*****/ | + | ===== Supported Versions |
| - | /* How to add images | + | <!-- ToH: { |
| - | /*****/ | + | " |
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| - | {{ media: | + | Supported in snapshots, since 2023-01-14. |
| - | ===== OpenWrt support ===== | ||
| - | |||
| - | 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: { |
| - | | EXAMPLE RT3052 @ 384 MHz | + | |
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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 104: | Line 134: | ||
| ===== Hardware ===== | ===== Hardware ===== | ||
| ==== Info ==== | ==== Info ==== | ||
| - | ^ Architecture | + | ^ Architecture |
| - | ^ Vendor | + | ^ Vendor |
| - | ^ Bootloader | + | ^ Bootloader |
| - | ^ System-On-Chip | + | ^ System-On-Chip |
| - | ^ CPU/ | + | ^ CPU/ |
| - | ^ Flash-Chip | + | ^ Flash-Chip |
| - | ^ Flash size | + | ^ Flash size | 16MiB | |
| - | ^ RAM | EXAMPLE 64 MiB | | + | ^ RAM |
| - | ^ Wireless | + | ^ Wireless |
| - | ^ Ethernet | + | ^ Ethernet |
| - | ^ Switch | + | ^ Switch |
| - | ^ USB | EXAMPLE 1x 2.0 | | + | ^ USB |
| - | ^ Serial | + | ^ Serial |
| - | ^ JTAG | + | ^ JTAG | [[#JTAG|Not populated]] |
| Line 131: | Line 161: | ||
| ==== Photos ==== | ==== Photos ==== | ||
| - | /* =====>>>>> | ||
| - | /* When uploading photos, **name them** intelligently. Nobody knows what 20100930_000602.jpg is! */ | ||
| - | /* e.g. {{: | ||
| - | /* Thanks, your wiki administration - Oct. 2015 */ | ||
| - | **Insert photo of front of the casing** | + | See Photos from the FCC DB if you need them https:// |
| - | + | ||
| - | **Insert photo of back of the casing** | + | |
| - | + | ||
| - | **Insert photo of backside label** | + | |
| - | + | ||
| - | **Insert photo of PCB** | + | |
| ==== Opening the case ==== | ==== Opening the case ==== | ||
| - | 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: | ||
| - | How to connect to the Serial Port of this specific device:\\ | + | There is a place for a standard uart header, pinout is written down on the PCB. Can easily be soldered. |
| - | There is a place for a standard uart header, pinout is written down on the PCB | + | |
| ^ Serial connection parameters\\ for Xiaomi Mi WiFi Range Extender AC1200 Model RA75 | 115200, 8N1, 3.3V | | ^ Serial connection parameters\\ for Xiaomi Mi WiFi Range Extender AC1200 Model RA75 | 115200, 8N1, 3.3V | | ||
| - | ==== JTAG ==== | ||
| - | -> [[docs: | ||
| - | How to connect to the JTAG Port of this specific device:\\ | ||
| - | **Insert photo of PCB with markings for JTAG port** | ||
| ===== Bootlogs ===== | ===== Bootlogs ===== | ||
| Line 867: | Line 882: | ||
| ===== Tags ===== | ===== Tags ===== | ||
| - | [[meta: | + | {{tag>MIPS ramips mt7628an 16Flash 64RAM 1port fastethernet wlan 802.11abgn 802.11a 802.11bgn 802.11ac wall_plug 1button mains_powered Serial U-Boot}} |
| - | {{tag>EXAMPLETAG unsupported}} | + | |