Fucare Gemini X - How to Access & Change Display Setting

[Usego]

I hope I chose the right subforum. Request to the moderators to move this topic to the right place if they deem it necessary.

Having borrowed an e-bike from my son, I decided to figure out the settings. I collected information from various sources and decided to post it here - maybe it will be useful to someone.

To enter the parameters setting screen:

1. Press and hold + & – simultaneously for 2 seconds.
2. Press +/- to select the parameter you want to change (each one is described below).
3. Press i button to enter the parameter changing state.
4. Press +/- to select the parameter's value.
5. Press i to save the setting and return to the parameter selection screen.
6. Press and hold i for 2 seconds to save the setting and exist the settings screen.

P1 - Metric or imperial
00 - Km.
01 - Miles (the default).

P2 - The rated voltage
Range: 24V, 36V, 48V, 52V (48V by default). Must fit the battery, so don't change if you don't change the battery.

P3 - Pedal assist (PAS) modes and their % ratios
Available modes: 0-3, 1-3, 0-5, 1-5, 1-7, 0-7, 0-9, 1-9 (0-5 by default).
Select the mode and click "i" to set the ratios (%) for each level of the mode.
The default ratios:

If you set a no-zero mode (for example, 1-9) and switch to its with-zero counterpart (0-9) or vise versa, your % settings stay the same, just a zero is added or removed.

P4 - Wheel Diameter
Don't change!

P5 - The number of the adjustable speed sensor magnets
Range: 1 ~ 15 psc (1 by default). Changes to this do nothing.

P6 - Speed limit
Range: 20-51 km/h (45 by default).

P7 - Controller current limit
Range: 1-21.5A (20 by default). Must fit the battery, so don't change if you don't change the battery.

P8 - PAS sensor settings
run (direction):
run-F - Forward (the default).
run-B - Backword.
Does anybody know what that means?
Scn (pedal lag / cadence sensor delay):
Range: 2-9 (9 by default). The higher the number, the more crank rotations it will take to activate the motor. Switch it to 2.
PAS (magnet settings):
Range: 5-31 (12 by default).
Does anybody know what that means and why would I want to change the number?

P9 - Throttle settings
HF (limit the throttle max speed by the max speed of the current assist level):
Y - Limit. For example, if you switch to level 3 and press the throttle, you will come only to the max speed of level 3.
n - Don't limit. Regardless the current PAS level, reach the speed limit set in P6 (or 80% of it like in some e-bikes, I am not sure).
HL (use the throttle for push-assistance aka walk boost):
Y - Speed will maintain at 6 km/h.
n - Speed will reach the limit set by HF (the default).
PA - The power-on password
PSd-Y - Use password (the default password is 1212). When PSd-Y is chosen, click "i" to enter the password.
Then, change the digit by up and down buttons, and click "i" to move to the next digit.
PSd-n - Don't use password (the default). When PSd-Y is chosen, click "i" to leave the PA setting.

Pb - Auto sleep
Range: 1-60 minutes (10 by default). 0 means no auto-shutdown.

 

[Usego]

Remark about % ratios. The first time I rode this bike, it was on PAS 1, but I almost died of fright - the bike carried me like crazy! It was the desire to reduce the minimum power that made me look into the settings. The minimum of 50% was too much for my needs. For me, 50% seems more like the maximum value, rather than the minimum. I experimented with different percentages, and finally came up with this 7-steps scheme:

1. 20% (for slow riding on winding roads with many turns in the park where people walk)
2. 25% (some fine tuning)
3. 30% (using it most of the time)
4. 40% (for hills, using often)
5. 50% (for hills, using sometimes)
6. 60% (for hills, using very rarely)
7. 98% (just for an emergency, using it in only on crazy uphill)

An alternative setup with more fine tuning:

1. 20%
2. 25%
3. 30%
4. 35%
5. 40%
6. 50%
7. 98%

If you need more than 50%, that means that you are on a such steep uphill that just go to the maximum.

If the desire to press buttons less if greater than the need in fine tuning, use this 5-steps scheme:

1. 20%
2. 30%
3. 40%
4. 50%
5. 98%

Some people prefer 9 levels, but I found it redundant - it's better to have less fine tuning, but also less button clicks.