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~~Q. How to disable/enable~~ <span style="color:red">Q1: Why does the ~~5V output~~ message "This power supply is not capable of ~~the UPS when the RPi 5 is turned off~~supplying 5A" appear??</span>

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~~A: Editing the EEPROM configuration~~X120X series UPS shield can provide '''enough 5A''' power supply capacity;

~~From the command line or Terminal window start by running the following command~~ Please set as follows:

~~<pre>~~Open the Teminal window based on '''Raspberry Pi OS''' and execute the following command: sudo rpi-eeprom-config -e~~</pre>~~ ~~Set <code>POWER_OFF_ON_HALT</code> to <code>0</code> or~~ Add <code>1PSU_MAX_CURRENT=5000</code> at the end of the file that reads like this:

[[File:X1012-setting.png|700px]]

~~<code>1</code>: disable 5v outputs~~

~~<code>0</code>: enable 5v outputs~~

Press '''Ctrl-O''', then enter, to write the change to the file.

'''Reboot''' your Raspberry Pi 5 to make the change take effect.

'''Note:''' If you are using other OS like Ubuntu, please flash '''Raspberry Pi OS''' first, and then re-flash other OS such as Ubuntu etc after completing the above settings.

If you are using '''USB peripherals''' that need to be powered from the RPi5's USB port, '''don't forget''' to enable the following settings to ensure that the RPi5's USB port's current output is not limited:

Add <code>usb_max_current_enable=1</code> in the <code>/boot/firmware/config.txt</code> file.

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<span style="color:red">Q: Q2. Why ~~does the message~~ am I seeing an "~~This power supply is not capable of supplying 5A~~Undervoltage Detected" ~~appear?~~warning?</span>

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~~X120X series UPS shield can~~ A:Regarding the low voltage warning issue(Please refer to Q1 to check whether the connection is installed correctly):* Please carefully check whether your hardware installation is secure and if the pogo pins are making proper contact. We have had cases where customers found that loose brass standoffs caused poor contact with the pogo pins, leading to the low voltage warning.* It may be caused by an OS update. Please confirm whether you have recently updated the OS or if your OS system updates automatically.* Please run the command:<code>vcgencmd pmic_read_adc</code> and provide us with the result. Alternatively, use a multimeter to measure the voltage value of '''~~enough 5A~~PIN2''' ~~power supply capacity~~. As shown in the figure[[File:X120x.png|700px]]<pre>pi@geekworm:~ $ vcgencmd pmic_read_adc 3V7_WL_SW_A current(0)=0.00097593A 3V3_SYS_A current(1)=0.13955800A 1V8_SYS_A current(2)=0.25374180A DDR_VDD2_A current(3)=0.01854267A DDR_VDDQ_A current(4)=0.00049020A 1V1_SYS_A current(5)=0.25276590A 0V8_SW_A current(6)=0.34547920A VDD_CORE_A current(7)=0.87514000A 3V3_DAC_A current(17)=0.00024420A 3V3_ADC_A current(18)=0.00024420A 0V8_AON_A current(16)=0.00341880A HDMI_A current(22)=0.02063490A 3V7_WL_SW_V volt(8)=3.70534400V 3V3_SYS_V volt(9)=3.31467300V 1V8_SYS_V volt(10)=1.80024200V DDR_VDD2_V volt(11)=1.11355200V DDR_VDDQ_V volt(12)=0.60109830V 1V1_SYS_V volt(13)=1.10622600V 0V8_SW_V volt(14)=0.80109810V VDD_CORE_V volt(15)=0.72017020V 3V3_DAC_V volt(20)=3.31318300V 3V3_ADC_V volt(21)=3.31684600V 0V8_AON_V volt(19)=0.80029220V HDMI_V volt(23)=5.19920000V EXT5V_V volt(24)=5.20322000V BATT_V volt(25)=0.00000000V</pre>Please check the voltage value of <mark>EXT5V_V</mark> line</div></div> <div class="toccolours mw-collapsible mw-collapsed"><div style="font-weight:bold;line-height:1.0;">Q3. How to disable/enable the 5V output of the UPS when the RPi 5 is turned off?</div><div class="mw-collapsible-content">A: Editing the EEPROM configuration

~~Please set as follows~~From the command line or Terminal window start by running the following command :

~~Open the Teminal window based on '''Raspberry Pi OS''' and execute the following command:~~<pre> sudo rpi-eeprom-config -e~~Add~~ </pre> Set <code>POWER_OFF_ON_HALT</code> to <code>0</code> or <code>~~PSU_MAX_CURRENT=5000~~1</code> ~~at the end of the file that reads~~ like this:

[[File:X1012-setting.png|700px]]

<code>1</code>: disable 5v outputs

<code>0</code>: enable 5v outputs

Press '''Ctrl-O''', then enter, to write the change to the file.

'''Reboot''' your Raspberry Pi 5 to make the change take effect.

~~'''Note:''' If you are using other OS like Ubuntu, please flash '''Raspberry Pi OS''' first, and then re-flash other OS such as Ubuntu etc after completing the above settings.~~

If you are using '''USB peripherals''' that need to be powered from the RPi5's USB port, '''don't forget''' to enable the following settings to ensure that the RPi5's USB port's current output is not limited:

~~Add <code>usb_max_current_enable=1</code> in the <code>/boot/firmware/config.txt</code> file.~~

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QQ4: How to disable '''auto power on''' feature on [[X1200]]?

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QQ5: How to disable '''auto power on''' feature on [[X1201]]?

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QQ6: How to disable '''auto power on''' feature on [[X1202]]?

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QQ7: How to disable '''auto power on''' feature on [[X1203]]?

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QQ8: Why is the RPi5 LED still on and red after the UPS is turned off?

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QQ9: What battery is recommended for this ~~ups~~ UPS shield?

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If using a lithium battery, the required voltage is 3.7V;

if If using a battery packor battery holder, please make sure it is a parallel battery pack. '''Please use a high-quality battery holder with thick and durable connection cables. Using a low-quality battery holder with thin or poorly connected wires may cause the X1203 to malfunction or fail to operate as expected.'''

There are 2 XH2.54-2P battery connectors on board, it is recommended to use the same type of battery.

QQ10: Run <code>sudo i2cdetect -y 1</code>, can't find I2C address 0x36?

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QQ11. How do you disable the X1202 auto-shutdown when you use it standalone (not installed on a RPi5)?

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QQ12. X1203 UPS voltage drops / low voltage warning appears?

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QQ13. Documentation about the I2C registers：

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[https://www.analog.com/media/en/technical-documentation/data-sheets/MAX17040-MAX17041.pdf MAX17040G+]

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Q14. Why does the RPI 5 lose power within a few seconds after pressing the power button on the X120x UPS?

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A:

'''Please note: If the UPS does not detect the RPi5, it will automatically shut down within 3 seconds. So you need to install the RPi 5 on the UPS and make sure that the RPi5 has good contact with the UPS's pogo pins.'''

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Q15. Which product should I choose if I can’t connect to a Raspberry Pi via pogo pins?

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A:

For the X12-UPS series, we recommend the '''[[X1206]]''' – models from X1200 to X1205 do not support this usage. The X120- UPS series auto-powers off when no Raspberry Pi 5 is detected, while the X1206 can be set to "Always Power On" mode and keeps working even if the Raspberry Pi is shut down. Please refer to <span style="color:red">'''Interface ⑩_ALON'''</span> in the picture.

[[File:X1206-IMG-7240-Interface-New.jpg|800px]]

You can also consider the '''[[X-UPS1]]'''. It features a GPIO Pin-Connected standalone design with high flexibility for installation and adaptation (refer to the picture).

[[File:X-UPS1-IMG-5409.jpg|800px]]

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