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Updated How to Expand Sonoff Basic to 4MB Flash (markdown)

Michael Ingraham 2019-02-23 11:20:13 -05:00
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18
How-to-Expand-Sonoff-Basic-to-4MB-Flash.md

@ -1,15 +1,15 @@
Heya,
in this memo i'll describe how to expand the flash of a sonoff basic from 1MB to 4MB.
In this memo I'll describe how to expand the flash of a sonoff basic from 1MB to 4MB.
The advantage for this change is, to avoid to double flash with the minimal and then with the normal firmware and to use more features like Webserver and SSL encryption.
It was hard to find those information,i'll give credits to some users from the german [CreationX](http://forum.creationx.de/forum/index.php?thread/319-sonoff-flash-speicher-verg%C3%B6%C3%9Fern-auf-4mb/) Forum.
It was hard to find those information, I'll give credits to some users from the german [CreationX](http://forum.creationx.de/forum/index.php?thread/319-sonoff-flash-speicher-verg%C3%B6%C3%9Fern-auf-4mb/) Forum.
Because to unsolder the flash isn't that easy as just solder in pins, this is **only for advances users**.
Because to unsolder the flash isn't that easy as just solder in pins, this is **only for advanced users**.
**Dont forget, its your own risk and the device could be damaged permamently.**
**Don't forget, it's at your own risk and the device could be damaged permanently.**
@ -26,10 +26,10 @@ You can find the WINBOND Flash on [eBay](https://www.ebay.de/itm/50PCS-W25Q32FVS
![winbond1](http://forum.creationx.de/index.php?attachment/839-aufdruck-jpg/)
![winbond-diffrent](http://forum.creationx.de/index.php?attachment/1075-unterschied-jpg/)
![winbond-different](http://forum.creationx.de/index.php?attachment/1075-unterschied-jpg/)
Those China Flashs are cheap productions, means the chance to solder in a new defect not working flash block is hight! Be ready to re-do the operation if the upload fails.
Those China Flashes are cheap productions, means the chance to solder in a new defect not working flash block is high! Be ready to re-do the operation if the upload fails.
If you want to test the flash block, build yourself a test module, something like this for easy soldering in a flash and test it before soldering it in another sonoff basics board.
![flash test](http://forum.creationx.de/index.php?attachment/844-tester2-jpg/)
@ -44,7 +44,7 @@ After the LED is out of the way, you give some tin on the pins from the flash bl
Now get a thin object between the flash and the board, try to gently lift the flash up and at the same time melt both rows of the flash pins tin rotatory. If you got enough space between the board and the flash change to the tweezers and finally take the flash block off.
Now refresh the contacts on the board for the new flash block with a lil bit of fresh tin.
Dont forget to give a lil bit tin to the new pins of the flash block, too!
Don't forget to give a lil bit tin to the new pins of the flash block, too!
Now put it on the contacts on the board and try to lock it with the tweezers.
Next take the solder iron and head just one pin and try to arrange the flashblock in the center now.
@ -52,7 +52,7 @@ Finally, heat and solder the other pins to the board.
![enter image description here](http://forum.creationx.de/index.php?attachment/1077-4mb-auf-platine-jpg/)
You can also use a hot air pistol (dont know the english name sry), this would be much safer, but also more expensive ([Amazon](https://www.amazon.de/italtronik-L%C3%B6tstation-Yihua-Hei%C3%9Fluft-Eingabestift/dp/B06VWMKDQQ)).
You can also use a hot air pistol (don't know the english name sry), this would be much safer, but also more expensive ([Amazon](https://www.amazon.de/italtronik-L%C3%B6tstation-Yihua-Hei%C3%9Fluft-Eingabestift/dp/B06VWMKDQQ)).
Be sure to protect the rest of the board if using the air pistol!
![enter image description here](http://forum.creationx.de/index.php?attachment/840-ausbau-jpg/)
@ -80,7 +80,7 @@ Now scroll back to the top and enter a new default environment with the name of
env_default = sonoff-DE-4M
You are done with the preparations, connect the Sonoff with the 4MB Flash in Flashmode (hold button while plugin in), click clean, click build, click upload.
You are done with the preparations, connect the Sonoff with the 4MB Flash in flash mode (hold button while powering it up), click clean, click build, click upload.
![config1](http://forum.creationx.de/index.php?attachment/835-tesp8266-flash-1m0-ld-png/)![enter image description here](http://forum.creationx.de/index.php?attachment/836-tesp8266-flash-4m1m-ld-png/)