Magic Home LED Controller OTA upload failed

[xoseperez]

Originally reported by: gimi87 (Bitbucket: gimi87, GitHub: gimi87)

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I have a problem with the upload via OTA. Here is the message: "There was an error trying to upload the new image, please try again (ERROR 4).". I can upload only via serial, but it is a cumbersome. Any ideas what is going on?

I tried to update from 1.9.7 to 1.9.8 and from 1.9.8 to 1.9.9. In both cases there was an error.

[xoseperez]

Error 4 is UPDATE_ERROR_SPACE which means there is not enough space for OTA. Can you check the "Free space" value in the status tab (at the bottom)?
Are you flashing a prebuild binary or compiling it yourself? How did you flash the version running on the device? Arduino IDE or PlatformIO?

[xoseperez]

Original comment by gimi87 (Bitbucket: gimi87, GitHub: gimi87):

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I am flashing by compiling it myself, because of custom functionality. I am compiling it via PlatformIO, but i don't know why this firmware can't be updated. Those are mine spaces from the device:
Free heap: 15600 bytes
Firmware size: 519376 bytes
Free space: 507904 bytes
Firmware which I want to upload has 505 296 bytes.

Notice that pre-compiled firmware has more than 500KB. Two slots for firmware (normal + OTA) with EEPROM will have more bytes than chip. So the original firmware will not be updated either.

[xoseperez]

Original comment by gimi87 (Bitbucket: gimi87, GitHub: gimi87):

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OTA updater let me go with the firmware size <500KB. Current weights:

Free heap: 19816 bytes
Firmware size: 498336 bytes
Free space: 528384 bytes

[xoseperez]

The binary images since 1.9.7 (I think) have been built against Core 2.4.0 RC2 and that increases the size in aprox 40Kb making it non-OTA compatible... my fault. Building it against 2.3.0 should let you flash it again. From now on will create binaries agains stable again, at least until I find another way to make the file shrink under 500Kb for all devices.

[xoseperez]

Images for 1.10.0 are all less than 468Kb

[xoseperez]

Removing milestone: 1.9.10 (automated comment)