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| wiki:contributors:taylorkline [2024/04/02 04:39] – OKD draft taylorkline | wiki:contributors:taylorkline [2024/04/03 15:53] – OKD draft taylorkline | ||
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| ===== Brief Summary of OKD ===== | ===== Brief Summary of OKD ===== | ||
| - | The RT3200 / E8450 suffers from an occasional failure known colloquially as the OpenWrt Kiss of Death (OKD). Symptoms of the OKD range from either an abrupt failure to get a full boot - most evident by the failure to get a blue LED after a reboot or power failure - or a progressive failure that may still boot through several attempts or after leaving the router in the refrigerator or freezer for 30 minutes. The progressive failure may proceed to a full failure eventually. | + | The RT3200 / E8450 suffers from an occasional failure known colloquially as the OpenWrt Kiss of Death (OKD). Symptoms of the OKD range from either an abrupt failure to get a full boot - most evident by the failure to get a poweron |
| As of April 2024, the cause of this issue is unknown, and the recent pre-release UBI Installer v1.1.1 - required for using snapshot builds - does NOT fix the issue and Daniel Golle ([[developers: | As of April 2024, the cause of this issue is unknown, and the recent pre-release UBI Installer v1.1.1 - required for using snapshot builds - does NOT fix the issue and Daniel Golle ([[developers: | ||
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| * [[https:// | * [[https:// | ||
| * **Ran** the v1.1.1 UBI installer (e.g. running recent snapshot builds. You'd know if you did it!) | * **Ran** the v1.1.1 UBI installer (e.g. running recent snapshot builds. You'd know if you did it!) | ||
| - | * [[https:// | + | * [[https:// |
| + | * Disassemble your RT3200 / E8450 (([[https:// | ||
| * Hook up your USB to TTL serial adapter to the RT3200 / E8450 **with the power off** | * Hook up your USB to TTL serial adapter to the RT3200 / E8450 **with the power off** | ||
| * remember that tx from router needs to go to rx of uart connector, and rx of router needs to go to tx of uart connector ((thanks forum member smashrvmco for the reminder)) | * remember that tx from router needs to go to rx of uart connector, and rx of router needs to go to tx of uart connector ((thanks forum member smashrvmco for the reminder)) | ||
| - | * Run the mtk_uartboot program with your downloaded files, followed by an **immediate** screen or putty command, e.g.: < | + | * Run the mtk_uartboot program with your downloaded files, followed by an **immediate** screen or putty command. |
| + | * Linux, when `mtk_uartboot` automatically recognizes the connected serial device: < | ||
| + | * macOS, when `mtk_uartboot` would otherwise use the wrong serial device: < | ||
| + | * < | ||
| * Power on the RT3200 / E8450 | * Power on the RT3200 / E8450 | ||
| - | * mtk_uart should trigger a boot and your screen / putty session should present you with a U-Boot menu. If you take no action for a number of seconds, your router will boot. To recover, **you want to immediately press any key (like a down arrow) to interrupt the boot and stay on the boot menu**. | + | * mtk_uart should trigger a boot (if you never get past < |
| - | * From the boot menu, select...? Picture??? | + | * From the boot menu, select |
| + | * {{ : | ||
| * Rewrite the flash ("As crazy as it sounds, but literally reading from the flash and writing back the read content fixes the issue." | * Rewrite the flash ("As crazy as it sounds, but literally reading from the flash and writing back the read content fixes the issue." | ||
| * Did **not** run the v1.1.1 UBI installer (e.g. anyone on OpenWrt 23.05.x or below, or older snapshots) | * Did **not** run the v1.1.1 UBI installer (e.g. anyone on OpenWrt 23.05.x or below, or older snapshots) | ||