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Updated Unofficial Hardware (markdown)

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Joel Jacobs 2020-07-03 15:39:43 -06:00
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Unofficial-Hardware.md

@ -43,11 +43,12 @@ Typically used for customizing an EON case or creating an EON device from scratc
* https://www.ifixit.com/Store/Android/OnePlus-3-Replacement-Battery/IF330-017?o=2
# Batteryless
Problems:
1. Phone needs to know it has a battery to even try to boot.
The internal software of the phone needs to see that a battery exists. In the case of a OnePlus3T, it just needs to see a voltage from the battery wire.
1. Phone requires spikes of power that most USB chargers (including the white/grey panda) can't provide.
Power is made up of Current (Amps) and Voltage. We measure power in watts usually. Watts are calculated by multiplying the current times the voltage.
## 2 Methods:
* Replace battery with DC-DC converter
* Supercapacitors
<details>
<summary>Replace battery with DC-DC converter</summary>
@ -70,18 +71,22 @@ _**Make sure to wrap the DC-DC converter in electric tape to prevent shorting**_
*This method is for the OnePlus 3T EON - not tested on LeEco*
1. Carefully remove the battery [(iFixit how-to link)](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwi0_bfVsajqAhXSqp4KHRp_DRYQFjATegQIBBAB&url=https%3A%2F%2Fwww.ifixit.com%2FGuide%2FOnePlus%2B3%2BBattery%2BReplacement%2F119676&usg=AOvVaw0USUqLRFEuYnONLSLj3VzY)
1. Solder the black and red connections to the ribbon cables and the battery board as in the picture below (Ignore the dc-to-dc converter and yellow wire shown - this image is used for both methods.) I tried to solder the red wire to the point on the pic and failed. I ended up cutting the little board off of the battery that has the connector and soldered to the + side of that little board remnant.
1. Purchase 2 supercapacitors at least 6 Farad and 2.7V. Here's a [link](https://www.amazon.com/gp/product/B082B2NZLL/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1) I used.
1. Carefully remove the battery [(iFixit how-to link)](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwi0_bfVsajqAhXSqp4KHRp_DRYQFjATegQIBBAB&url=https%3A%2F%2Fwww.ifixit.com%2FGuide%2FOnePlus%2B3%2BBattery%2BReplacement%2F119676&usg=AOvVaw0USUqLRFEuYnONLSLj3VzY)
1. Remove the tiny circuit board from the old battery (shown below). Cut the big metal from the batteries so the board comes out like below. *Take note of which direction the connector for the battery plugs into the phone's socket*, since its possible to insert upside-down. **DON'T PUT IT IN UPSIDE DOWN LATER!**
1. Cut that circuit board at the point shown in the picture.(Can just use wire-cutters)
1. Peel the blue stuff off of the [B- SDA SCL B+] section.
1. Connect 2 of the supercapacitors in series by twisting one's (+) lead and the other's (-) lead. Solder them together if you want to and **be sure to insulate them** (wrap electrical tape, captan tape or heat-shrink.)
1. Connect the free (+) in your capacitor array to the red wire, and connect the free (-) in your capacitor array to the black wire.
1. **INSULATE all bare wires**. That includes the leads to the capacitors. They can't touch anything else.
1. Test if it all works. Plug your USB in and see if it boots. It may take a few times to boot fully while it tries to charge the capacitors. It may also show the "batteries too low" screen. But it should eventually (and from now on) boot just fine.
1. Connect the free (+) in your capacitor array to the (+) on your battery board, and the (-) in your capacitor array to the (-) on your battery board. Depending on how you physically mount all of this, you may need to use wires to connect the capacitors to the board.
1. **INSULATE all bare wires and connections**. That includes the leads to the capacitors. They can't touch any other metal.
1. Test if it all works.
1. Plug your battery board back into it's socket [**DON'T PLUG IN UPSIDE-DOWN!**]
1. Then plug your USB in and see if it boots.
1. It may take a few times to boot fully while it tries to charge the capacitors. It may also show the "batteries too low" screen. But it should eventually (and from now on) boot just fine.
1. Mount capacitors and alter case as needed to close up the phone
1. Somehow arrange inside your case or alter your case so the capacitors fit and are mounted well.
![OnePlus3TNoBatteryWiring](https://user-images.githubusercontent.com/3239886/86073059-45cda600-ba40-11ea-906b-593ece92bd39.jpg)
![BatteryBoard](https://user-images.githubusercontent.com/3239886/86186825-4d9c5180-baf7-11ea-9f64-7b79b6039a53.jpg)
</details>
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