KM The peak-to-peak and maximum voltages, which are hard to see in the photos are most interesting.

The cursor measurements have been added on these ones.
https://imgur.com/a/LdNgP3t

    Does anyone know what is going on when the phone is rebooted and a green screen with two gears shows up saying "Android is starting...Optimizing App 1 of 1"??? I am freaking out.
    I have never seen this before. I checked and automatic updates are deactivated.
    Have they found another way through? I really do not want more surprises...

    • KM replied to this.

      AGI I believe the Google Play Store updates itself automatically.

      • AGI replied to this.

          Pixel 3 is due in about 1 month. I'm hopeful that we will find it usable!

          • JTL replied to this.

            ryans I wouldn't hold my breath. Not until OLED PWM is "solved".

                KM Thanks. It actually happens every time I shut the phone down. Like, if I switch off twice in a row, it runs that optimization again...it cannot be a real update...Looks like some kinda bug...

                • JTL replied to this.

                    AGI I think what it's doing is recaching all the app files. Not an update.

                    • AGI replied to this.

                        JTL I know, I'm trying to be optimistic. I wonder if it's possible to have some kind of therapy to make people less sensitive to PWM. I'm concerned because I don't believe OLED is going away anytime soon. For people that aren't us, OLED is great, it produces some really nice colors.

                        • JTL replied to this.

                            JTL Thanks, it does it all the time now. I googled and read that others have encountered a similar issue upon installing new apps. I did install two new apps recently. I will try to uninstall and see how it goes.

                            On a different note, my "classic" Nokia 3310 3G is giving me a hard time. Unusable. I cannot believe I am incapable of utilizing what should be the most basic of the phones. So I am in the quest for another solution. Has anyone tested Yotaphone 3? I remembered someone being satisfied with Yotaphone 2, both displays, but right now that model is only available on eBay for 3 times the price of the new edition...

                              ryans I wonder if it's possible to have some kind of therapy to make people less sensitive to PWM

                              Cannabis medicine is the closest to that goal I've found.

                              We need more reverse engineering research to disable PWM on Android phones, similar to what @Wootever did for Samsung phones. His work was great progress though.

                                Just a side note because I am confused how some of you talk about AMOLED PWM like it is unavoidable. It is not! There are more and more devices with which you can avoid PWM by setting the brightness manually. Maybe you know this but it did not sound like it.

                                • JTL replied to this.

                                  KM I would prefer a device that doesn't have AMOLED PWM all together.

                                    Solf Thanks. I am not an expert. Do you mean you are using customized / homemade OS & apps? In case, is the reason that you had eyestrain with Android / Google Apps and found benefits by using those others?

                                    • Solf replied to this.

                                        AGI No, the original OS is too slow, the custom OS is just for speed. However, some people reported they get eye strain just after software update to Android 4.4.4. The Cyanogenmod 10.2 (Android 4.3) is the oldest software I could find.

                                        • AGI replied to this.

                                            Solf Thanks.

                                            Guys, would you define this phone PWM-free?

                                            Screen flickering / PWM not detected
                                            In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8813 (minimum: 43 - maximum: 142900) Hz was measured.

                                            https://www.notebookcheck.net/Nomu-S30-Smartphone-Review.212938.0.html

                                            Also, is it correct that PWM cannot be ruled out if a "good" phone becomes unusable after a software / app update?

                                            • KM replied to this.

                                                AGI Not for sure. Their screenshot is strange. The chose a high voltage divider and the voltage is displayed just above zero, which makes it impossible to analyse small fluctuations. And you can see the line is not perfectly flat. While this is probably not PWM it might be some smaller flicker. It is unclear if small flicker has an effect, too.

                                                The OS eye strain is probably not related to PWM. But to be sure one would need to analyze a device before and after upgrading.

                                                • AGI likes this.
                                                  5 days later

                                                  AGI https://shop.oaxis.com/collections/inkcase/products/inkcase-i7-for-iphone

                                                  Does anyone know this product? It looks like a second screen rather than a case...

                                                  Replying to my own post. I chatted with the vendor. The item is a case which fits on the backside of a few models of IPhone and offers a second, e-ink screen just for the purpose of reading e-books via a proprietary app, and a few other minor functions, like clock, alarm, etc. etc.
                                                  The e-ink screen cannot be used to make phone calls, surf the net and all that is typically done with a phone.
                                                  I also read a few reviews with regard to the e-reading experience. Not so positive.
                                                  Not what I was hoping...

                                                    dev