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    [HowTo] Alternate way of saving battery when using 4G/LTE

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    • D
      domubpkm last edited by

      One way to save battery power, as seen with my Volla, is to turn off cellular data when not needed and turn it back on when needed. This does not prevent the use of phone and SMS functions.
      It is the fact of being connected to a 4G, 3G or even 2G network that really drains the battery and even more so when the sky is not clear (inappropriate atmospheric conditions): there the overconsumption can get out of hand.

      Keneda 1 Reply Last reply Reply Quote 1
      • Keneda
        Keneda @domubpkm last edited by

        @domubpkm Problem is that prevents from receiving MMS.

        2015-Now : Meizu MX4 (Stable) for daily use
        Spare : Nexus 5 (Stable)

        D 1 Reply Last reply Reply Quote 0
        • D
          domubpkm @Keneda last edited by domubpkm

          @keneda Yes, nothing is perfect! For mails, they arrive well once the cellular data has been reactivated. For MMS, when cellular data OFF, a SMS informs the recipient that the MMS could not be recovered.
          screenshot20210528_133042098.png

          jezek 1 Reply Last reply Reply Quote 0
          • jezek
            jezek @domubpkm last edited by

            @domubpkm There is a pull request waiting for approval, which handles all the trouble when receiving MMS while cellular data is off. Feel free to test and report. šŸ˜‰

            jEzEk

            D 1 Reply Last reply Reply Quote 1
            • Mario.CH
              Mario.CH last edited by

              Hello c4pp4,
              thanks for your work on the topic of battery saving.
              I did the test on my Sony Xperia X (F5121). The device switches to G2 as promised. However, when the device wakes up, it does not switch back to LTE.
              Unfortunately for me, my network provider no longer supports G2, so I have no connection to the antenna, i.e. "The subscriber is currently unavailable".😁
              Now I want to remove the script or the changes I made.
              Is that possible?
              And how do I do that?
              Could you support me.
              Greetings Mario

              Translated with www.DeepL.com/Translator (free version)

              šŸ“± Xperia X ;since 2020
              šŸŽ When you realize you are riding a dead horse, get off!
              My languages skill: šŸ‡ØšŸ‡­šŸ‡¦šŸ‡¹ šŸ‡©šŸ‡Ŗ, and only orally: šŸ‡¬šŸ‡§ šŸ‡¹šŸ‡­

              c4pp4 1 Reply Last reply Reply Quote 0
              • D
                domubpkm last edited by

                To do that, i deleted the script (lte-battery-saver) and the upstart session job (lte-battery-saver.conf) and rebooted the smartphone.

                1 Reply Last reply Reply Quote 0
                • c4pp4
                  c4pp4 @Mario.CH last edited by

                  @mario-ch Hello,
                  what kind of connections are available in your case? I can help you to tweak the script for your needs.

                  Anyway to take back the changes, remove both files:

                  rm /home/phablet/lte-battery-saver
                  rm /home/phablet/.config/upstart/lte-battery-saver.conf
                  
                  Mario.CH 1 Reply Last reply Reply Quote 1
                  • Mario.CH
                    Mario.CH @c4pp4 last edited by

                    @c4pp4 As it seems, or rather I think 3G would work.

                    šŸ“± Xperia X ;since 2020
                    šŸŽ When you realize you are riding a dead horse, get off!
                    My languages skill: šŸ‡ØšŸ‡­šŸ‡¦šŸ‡¹ šŸ‡©šŸ‡Ŗ, and only orally: šŸ‡¬šŸ‡§ šŸ‡¹šŸ‡­

                    c4pp4 1 Reply Last reply Reply Quote 0
                    • c4pp4
                      c4pp4 @Mario.CH last edited by

                      @mario-ch You mean switch to 3G when display is off and switch back to 4G when on?

                      Mario.CH 1 Reply Last reply Reply Quote 0
                      • Mario.CH
                        Mario.CH @c4pp4 last edited by

                        @c4pp4 yep, that's exactly what i mean.

                        šŸ“± Xperia X ;since 2020
                        šŸŽ When you realize you are riding a dead horse, get off!
                        My languages skill: šŸ‡ØšŸ‡­šŸ‡¦šŸ‡¹ šŸ‡©šŸ‡Ŗ, and only orally: šŸ‡¬šŸ‡§ šŸ‡¹šŸ‡­

                        c4pp4 2 Replies Last reply Reply Quote 0
                        • c4pp4
                          c4pp4 @Mario.CH last edited by c4pp4

                          @mario-ch Ok give me some time, I will test it on my xperia x and let you know.

                          BTW you can try it on your own when you replace "gsm" with "umts".

                          1 Reply Last reply Reply Quote 0
                          • c4pp4
                            c4pp4 @Mario.CH last edited by c4pp4

                            @mario-ch In case of Xperia X (maybe it's related to Halium 7.1) we have to set it to "lte" option instead of "any", so the script for your needs (3G<->4G) is here:

                            #!/bin/bash
                            
                            interface=org.freedesktop.DBus.Properties
                            member=PropertiesChanged
                            
                            dbus-monitor --session "type=signal,interface='${interface}',member='${member}'" |
                            while read -r line; do
                                    if [[ ${line} == *"com.canonical.UnityGreeter"* ]]; then
                                            read && read && read -r line
                                            if [[ ${line} == *"IsActive"* ]]; then
                                                    read -r line
                                                    [[ ${line} == *"true"* ]] && /usr/share/ofono/scripts/set-tech-preference /ril_0 umts 1>/dev/null
                                                    [[ ${line} == *"false"* ]] && /usr/share/ofono/scripts/set-tech-preference /ril_0 lte 1>/dev/null
                                            fi
                                    fi
                            done
                            
                            Mario.CH 1 Reply Last reply Reply Quote 2
                            • D
                              domubpkm @jezek last edited by

                              @jezek said in [HowTo] Alternate way of saving battery when using 4G/LTE:

                              which handles all the trouble when receiving MMS while cellular data is off

                              Hello. You done a huge work..! congratulations.

                              Does it mean that the main purpose of the work is that MMS could be received normally with cellular data OFF ?

                              Keneda 1 Reply Last reply Reply Quote 1
                              • Keneda
                                Keneda @domubpkm last edited by Keneda

                                @domubpkm said in [HowTo] Alternate way of saving battery when using 4G/LTE:

                                Does it mean that the main purpose of the work is that MMS could be received normally with cellular data OFF ?

                                No the purpose is to not loose MMS in any cases and being able to download them when data is back on.
                                You can't receive MMS without data on, no software tweak can change this.
                                See there if not already done for full story : https://forums.ubports.com/topic/5100/the-mms-lost-story

                                2015-Now : Meizu MX4 (Stable) for daily use
                                Spare : Nexus 5 (Stable)

                                1 Reply Last reply Reply Quote 3
                                • D
                                  domubpkm last edited by domubpkm

                                  It's not a story, it's a ''bible'' (which I hadn't read) like the amount of work (and surely headaches) put in by @jezek .. Yes, the aim is, rather, to have a delayed download (or to be able to delay downloading the MMS) when the cellular data is reactivated which is great. In short, the idea is to ensure that the MMS is not lost. I think it's more exact.

                                  ....and this would be good as it would allow the cellular data to be turned off to save battery power and turned back on when needed to download the MMS. šŸ™‚

                                  1 Reply Last reply Reply Quote 1
                                  • Mario.CH
                                    Mario.CH @c4pp4 last edited by

                                    @c4pp4
                                    Hello c4pp4,
                                    so, my device has been running with this customization for almost a week now.
                                    Still, I can't say yet if it causes any improvement in battery life.
                                    But for sure I can confirm that it does not contribute to any degradation.
                                    Thank you again.

                                    Translated with www.DeepL.com/Translator (free version)

                                    šŸ“± Xperia X ;since 2020
                                    šŸŽ When you realize you are riding a dead horse, get off!
                                    My languages skill: šŸ‡ØšŸ‡­šŸ‡¦šŸ‡¹ šŸ‡©šŸ‡Ŗ, and only orally: šŸ‡¬šŸ‡§ šŸ‡¹šŸ‡­

                                    c4pp4 1 Reply Last reply Reply Quote 1
                                    • c4pp4
                                      c4pp4 @Mario.CH last edited by

                                      @mario-ch Maybe there is no such difference between G3 and G4 consumption.

                                      Keneda TotalRando 2 Replies Last reply Reply Quote 0
                                      • Keneda
                                        Keneda @c4pp4 last edited by

                                        @c4pp4
                                        I don't use the script but i can tell you that there is a big difference on my phone in battery consumption between 3G and 4G.

                                        2015-Now : Meizu MX4 (Stable) for daily use
                                        Spare : Nexus 5 (Stable)

                                        1 Reply Last reply Reply Quote 1
                                        • TotalRando
                                          TotalRando @c4pp4 last edited by TotalRando

                                          @c4pp4 Ok, so just to confirm (because I have already messed up Anbox and will probably have to reinstall anyway just for that), this script defaults to 3G/4G? So it won't go back to 2G? Because that's what I want. It annoys me to have to switch back to 3G/4G every time I turn my phone back on (2G is virtually unusable where I live but if the phone sleeps too long, it's back on 2G.) I only need the last script from before the "note for the further investigation" part? Just copy into a Seabass, save script and run in terminal?

                                          NOTE: I don't care about battery consumption-- my phone is plugged in a lot-- but I do like my calls crystal clear when I dial without having to be like "ugh, it's on 2G again". Also, I can't get MMS on 2G but on 3G/4G, works fine.


                                          Nerd with UT on a OnePlus One. OnePlus 6T waiting in the wings for VoLTE.

                                          c4pp4 1 Reply Last reply Reply Quote 0
                                          • c4pp4
                                            c4pp4 @TotalRando last edited by

                                            @totalrando use the walkthrough from the first post, just change variables to:

                                            primary_preference="lte"
                                            saving_preference="umts"
                                            
                                            1 Reply Last reply Reply Quote 2
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