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    OnePlus One Battery At 50% Issue

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      • LakotaubpL Offline
        Lakotaubp
        last edited by

        One of my OPO yesterday decided to stick at a battery indicator of 50% and no charging indication. It now has the quite common low power charge before booting screen showing. It will boot into UT when connected to mains power then dies shortly after being disconnected.
        This issue is common on OPO devices from a quick search and not UT related.
        So has anyone here fixed or have any pointers before I start taking it a part. Thanks.

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        • dieharddanD Offline
          dieharddan
          last edited by

          I believe it was the QA and testing telegram group there was a user who mentioned this same issue after a recent update

          LakotaubpL 1 Reply Last reply Reply Quote 0
          • LakotaubpL Offline
            Lakotaubp @dieharddan
            last edited by

            @dieharddan Probably me I mention it there as it went funny after an update but that was coincidence

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            • G Offline
              Giiba
              last edited by

              Sounds like a dead battery to me. Id find a new one on fleabay or the like.

              LakotaubpL 1 Reply Last reply Reply Quote 0
              • LakotaubpL Offline
                Lakotaubp @Giiba
                last edited by

                @Giiba That was my first thought but various OPO web hits say it's a hardware based others it's battery so thought I'd see if anyone here has done it.

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                • N Offline
                  normandc
                  last edited by

                  On my OPO the battery indicator almost always gets stuck at 50% after a reboot. In such cases I often need to reboot multiple times in a row before the battery indicator returns to normal. I've had charging issue only once, soon after I got my OPO from eBay. The vendor had supposedly recently replaced the battery - there is some damage on the edges of the casing, indicating it has been forced open, so I assume he did change the battery. There's a bulge at the back of the phone which seems to indicate overheating.

                  I can't wait to get a new device to put UT on it (waiting for the Pinephone).

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                  • D Offline
                    domubpkm
                    last edited by

                    Sometimes problems with indicating a good battery percentage with the bq's, I don't think I had that with my OPO. As far as I'm concerned, the most reliable way is to drain the battery completely before recharging it for recalibration. An operation to be done from time to time, it puts things back in order.

                    LakotaubpL 1 Reply Last reply Reply Quote 0
                    • LakotaubpL Offline
                      Lakotaubp
                      last edited by

                      Latest update. Had the back off checked battery connections. Cleaned and reconnected, and no change. Battery indicator still 50% and no charging green light. But at least I know someone else has been inside before now. As their not to expensive will try new battery I think.

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                      • LakotaubpL Offline
                        Lakotaubp @domubpkm
                        last edited by

                        @domubpkm This was run flat then got the not enough power recharge before booting screen. Charged for 24hrs and no change. Think it may be something on power circuit as no charging indicator at all. The 50% indication seems to be a bit off a default error thing on OPs with power issues.

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                        • W Offline
                          wdehoog @Lakotaubp
                          last edited by

                          @Lakotaubp if you want to see how the system reads your battery state you could try this in a terminal:

                          cat /sys/devices/qpnp-charger-f6284000/power_supply/battery/uevent
                          
                          LakotaubpL D 2 Replies Last reply Reply Quote 1
                          • LakotaubpL Offline
                            Lakotaubp @wdehoog
                            last edited by Lakotaubp

                            @wdehoog
                            Thanks, and the result is

                            POWER_SUPPLY_NAME=battery
                            POWER_SUPPLY_CHARGING_ENABLED=1
                            POWER_SUPPLY_STATUS=Discharging
                            POWER_SUPPLY_CHARGE_TYPE=N/A
                            POWER_SUPPLY_HEALTH=Unknown
                            POWER_SUPPLY_PRESENT=1
                            POWER_SUPPLY_ONLINE=1
                            POWER_SUPPLY_TECHNOLOGY=Li-ion
                            POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4350000
                            POWER_SUPPLY_VOLTAGE_MIN_DESIGN=4400000
                            POWER_SUPPLY_VOLTAGE_NOW=3500000
                            POWER_SUPPLY_CAPACITY=50
                            POWER_SUPPLY_CURRENT_NOW=0
                            POWER_SUPPLY_INPUT_CURRENT_MAX=100000
                            POWER_SUPPLY_INPUT_CURRENT_TRIM=44
                            POWER_SUPPLY_INPUT_CURRENT_SETTLED=0
                            POWER_SUPPLY_BYPASS_VCHG_LOOP_DEBOUNCER=0
                            POWER_SUPPLY_VOLTAGE_MIN=4300000
                            POWER_SUPPLY_INPUT_VOLTAGE_REGULATION=1
                            POWER_SUPPLY_CHARGE_FULL_DESIGN=0
                            POWER_SUPPLY_CHARGE_FULL=0
                            POWER_SUPPLY_TEMP=-400
                            POWER_SUPPLY_TEMP_COOL=100
                            POWER_SUPPLY_TEMP_WARM=450
                            POWER_SUPPLY_SYSTEM_TEMP_LEVEL=0
                            POWER_SUPPLY_CYCLE_COUNT=0
                            POWER_SUPPLY_CHARGE_NOW=4940
                            POWER_SUPPLY_CHARGE_TIMEOUT=0
                            POWER_SUPPLY_AUTHENTICATE=1
                            
                            

                            So discharging when should be charging, health unknown and power supply hot.

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                            • LakotaubpL Offline
                              Lakotaubp
                              last edited by

                              And this from another OPO running fine.

                              POWER_SUPPLY_NAME=battery
                              POWER_SUPPLY_CHARGING_ENABLED=1
                              POWER_SUPPLY_STATUS=Charging
                              POWER_SUPPLY_CHARGE_TYPE=Fast
                              POWER_SUPPLY_HEALTH=Good
                              POWER_SUPPLY_PRESENT=1
                              POWER_SUPPLY_ONLINE=1
                              POWER_SUPPLY_TECHNOLOGY=Li-ion
                              POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4350000
                              POWER_SUPPLY_VOLTAGE_MIN_DESIGN=4400000
                              POWER_SUPPLY_VOLTAGE_NOW=4216000
                              POWER_SUPPLY_CAPACITY=92
                              POWER_SUPPLY_CURRENT_NOW=-375
                              POWER_SUPPLY_INPUT_CURRENT_MAX=100000
                              POWER_SUPPLY_INPUT_CURRENT_TRIM=40
                              POWER_SUPPLY_INPUT_CURRENT_SETTLED=0
                              POWER_SUPPLY_BYPASS_VCHG_LOOP_DEBOUNCER=0
                              POWER_SUPPLY_VOLTAGE_MIN=4300000
                              POWER_SUPPLY_INPUT_VOLTAGE_REGULATION=1
                              POWER_SUPPLY_CHARGE_FULL_DESIGN=0
                              POWER_SUPPLY_CHARGE_FULL=0
                              POWER_SUPPLY_TEMP=232
                              POWER_SUPPLY_TEMP_COOL=100
                              POWER_SUPPLY_TEMP_WARM=450
                              POWER_SUPPLY_SYSTEM_TEMP_LEVEL=0
                              POWER_SUPPLY_CYCLE_COUNT=0
                              POWER_SUPPLY_CHARGE_NOW=4993
                              POWER_SUPPLY_CHARGE_TIMEOUT=0
                              POWER_SUPPLY_AUTHENTICATE=1
                              
                              
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                              • D Offline
                                domubpkm @wdehoog
                                last edited by

                                @wdehoog Very interesting.
                                Can you tell me if this command line be used as is or adapted for other phones (BQ E5HD,BQ 4.5, nexus 5) ? Thanks

                                LakotaubpL W 2 Replies Last reply Reply Quote 0
                                • LakotaubpL Offline
                                  Lakotaubp @domubpkm
                                  last edited by Lakotaubp

                                  @domubpkm No idea sorry not mine @wdehoog s. I just ran it in a terminal on laptop and connected via adb shell to the OPO. You can always give it a go.

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                                  • W Offline
                                    wdehoog @domubpkm
                                    last edited by

                                    @domubpkm you'll have to find the correct path for your device.
                                    For N5 I think it is

                                    /sys/devices/soc/qpnp-fg-17/power_supply/bms/uevent
                                    

                                    a good start will be to search for power_supply:

                                    find /sys/devices -name power_supply
                                    

                                    Sometimes the kernel also provides a path through /sys/class.

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                                    • LakotaubpL Offline
                                      Lakotaubp
                                      last edited by Lakotaubp

                                      Just changed battery and...... no change. No charging indicator and no boot past powered by screen. Going to double check connections and try again. Did notice that some other repairs to a cable seem to have taken place so not hopeful.

                                      Edit: As they are not very expensive might try a new charging cable (Internal). Will let you know.
                                      Extra Edit: New battery appears to fix it. See below.

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                                      • LakotaubpL Offline
                                        Lakotaubp
                                        last edited by Lakotaubp

                                        Just got the OPO to boot into UT, had to use the installer. Battery now showing 100% so that part is fixed but not the charging issue.

                                        POWER_SUPPLY_NAME=battery
                                        POWER_SUPPLY_CHARGING_ENABLED=1
                                        POWER_SUPPLY_STATUS=Charging
                                        POWER_SUPPLY_CHARGE_TYPE=Fast
                                        POWER_SUPPLY_HEALTH=Good
                                        POWER_SUPPLY_PRESENT=1
                                        POWER_SUPPLY_ONLINE=1
                                        POWER_SUPPLY_TECHNOLOGY=Li-ion
                                        POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4350000
                                        POWER_SUPPLY_VOLTAGE_MIN_DESIGN=4400000
                                        POWER_SUPPLY_VOLTAGE_NOW=4272000
                                        POWER_SUPPLY_CAPACITY=100
                                        POWER_SUPPLY_CURRENT_NOW=-274
                                        POWER_SUPPLY_INPUT_CURRENT_MAX=100000
                                        POWER_SUPPLY_INPUT_CURRENT_TRIM=44
                                        POWER_SUPPLY_INPUT_CURRENT_SETTLED=0
                                        POWER_SUPPLY_BYPASS_VCHG_LOOP_DEBOUNCER=0
                                        POWER_SUPPLY_VOLTAGE_MIN=4300000
                                        POWER_SUPPLY_INPUT_VOLTAGE_REGULATION=1
                                        POWER_SUPPLY_CHARGE_FULL_DESIGN=0
                                        POWER_SUPPLY_CHARGE_FULL=0
                                        POWER_SUPPLY_TEMP=250
                                        POWER_SUPPLY_TEMP_COOL=100
                                        POWER_SUPPLY_TEMP_WARM=450
                                        POWER_SUPPLY_SYSTEM_TEMP_LEVEL=0
                                        POWER_SUPPLY_CYCLE_COUNT=0
                                        POWER_SUPPLY_CHARGE_NOW=4922
                                        POWER_SUPPLY_CHARGE_TIMEOUT=0
                                        POWER_SUPPLY_AUTHENTICATE=1
                                        
                                        
                                        

                                        EDIT: As those, unlike me who pay attension can see from the above the new battery is in fact charging. The indicator is now working after about 20 Mins. I have a feeling that at some point trying to sort this out I messed up the OS and it needed reinstalling before it would boot. So good news.

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