Guest r00tmydevices Posted February 22, 2015 Report Posted February 22, 2015 Looks like something is really wrong there. Mine doesn't drain that quickly and I use it a lot. You willing to try a factory reset and see what happens before you log into your google account and restore all your apps. Has to be worth a try before returning for an exchange. Yes, anythings got to be worth trying before the inevitable exchange route. Thinking of purchasing Titanium app to backup all of my settings before trying a factory reset. Is it easy to use and will it save me then having to reinstall all my apps etc? Thanks.
Guest pudpoh Posted February 22, 2015 Report Posted February 22, 2015 Just a thought try booting it into safe mode, hold volume down and power button when starting up. It will only load and run the pre installed apps, might help you check if a factory reset is going to work.
Guest r00tmydevices Posted February 22, 2015 Report Posted February 22, 2015 Just a thought try booting it into safe mode, hold volume down and power button when starting up. It will only load and run the pre installed apps, might help you check if a factory reset is going to work. Happy to try that. What I am expecting to see once I boot into safe mode?
Guest pudpoh Posted February 23, 2015 Report Posted February 23, 2015 If it is successful it will say safe mode bottom left side of screen and the only apps available in the app drawer will be the pre loaded ones. None of the apps you have downloaded will be available. It is a good way to test if an app you have downloaded has caused your battery drain issues.
Guest r00tmydevices Posted February 23, 2015 Report Posted February 23, 2015 Managed to get h2 in Safe Mode. Will see if rapid battery drain problem is affected. Fingers-crossed!
Guest samac Posted February 23, 2015 Report Posted February 23, 2015 Another way to enter safe mode is to press and hold the power button to shut down then hold your finger on the power down prompt for 2 seconds, you will get a prompt to boot to safe mode, as simple as that. samac
Guest r00tmydevices Posted February 23, 2015 Report Posted February 23, 2015 (edited) Okay well my unit has a deffo problem. Since booting into Safe Mode, 4-5 hours ago, it has just been in standby mode with wifi on, nothing else running and the battery is already down to 80%. :unsure: :wacko: :huh: <_< :o Have switched wifi off and see if that makes any difference to the battery drain. Not holding my breath though! Edited February 23, 2015 by r00tmydevices
Guest r00tmydevices Posted February 23, 2015 Report Posted February 23, 2015 (edited) Okay since switching wifi off on h2 just over two hours ago the battery has dropped a further 6%. Can wifi switched on but tablet in standby really drain that fast? Edited February 23, 2015 by r00tmydevices
Guest Posted February 24, 2015 Report Posted February 24, 2015 (edited) Just out of interest what do you have your wifi set to in advanced settings 'keep wifi on during sleep', I'm presuming it's not 'never'? It may be worth looking over your wireless router/access point configuration to try and minimize power transmission / channel frequency overlap and congestion with other wifi networks. All factors in how hard your hudl2 has to use it's wifi to keep it's connection. ;) The ability of the new hudl2 to use the 5Ghz band is worth it's weight in gold round here. :D Edited February 24, 2015 by Guest
Guest r00tmydevices Posted February 24, 2015 Report Posted February 24, 2015 (edited) Just out of interest what do you have your wifi set to in advanced settings 'keep wifi on during sleep', I'm presuming it's not 'never'? It may be worth looking over your wireless router/access point configuration to try and minimize power transmission / channel frequency overlap and congestion with other wifi networks. All factors in how hard your hudl2 has to use it's wifi to keep it's connection. ;) The ability of the new hudl2 to use the 5Ghz band is worth it's weight in gold round here. :D Thanks for above info. Went into settings > wifi > advanced. As you rightly thought, keep wifi on when sleeping was set to 'always'. Duly changed that to 'never' then switched wifi back to on this morning when battery was at 49%. It's dropped to 40%. This was 100% yestetday around 4pm yesterday and since booting into Safe Mode apart from being in standby has not been used at all. No apps are running, nothing. 60% drop in 22 hours surely can't be right and wifi was switched off overnight too. Don't know enough about checking or changing settings in the travel router which I'm using as an access point, so any pointers of what I'm looking for or should change would be appreciated. It is looking more and more likely to me that I have a defective battery. Purchased a PortaPow 20AWG charge only cable and will be using that from now on instead of the stock Tesco one but I'm not sure that is going to be able to remedy this battery issue? Edited February 24, 2015 by r00tmydevices
Guest Posted February 25, 2015 Report Posted February 25, 2015 (edited) On the wireless router / access point, firstly I'd download inSSIDer from the Play store. Once up and running, swiping left will give you invaluable pages of information about not only your wireless connection but also your wireless surroundings. If you're using the 2.4Ghz range i.e. 802.11bgn you only have 3x no overlapping channels (1/6/11). If you're using the 5Ghz range i.e. 802.11an you have many many non-overlapping channels. You'll be able to see your current working frequently, channel and signal strength through this app, but it also nicely shows all other receivable wireless networks in your current location as well. So in your house for example you can see if your wireless router is using either a congested or non-congested channel (as someone else's nearby wireless network could be configured on the same channel as you). If you are working in a congested wireless environment, both your wireless router and hudl2 will be using more power when transmitting to try and overcome the other wireless network interference. Also, your distance from your wireless router in such an environment will also require higher transmitting power to keep the link etc. Coming back on topic, this will all have a bearing on how heavily you battery is being used while wireless comms are happening - think of your mobile, the near it is to a base station the less power it uses, the less interference there is the less power it uses. If your wireless router is configured for the 2.4 (b,g,n) range - ensure it's configured for the least congested non overlap able channel (i.e. 1, 6 or 11).If you can use the 5 (a,n) range it'll generally find it's own least congested channel. Final wireless point (promise) you can also save a little bit of battery life by telling the hudl2 to only use the 2.4 'OR' 5 GHz range only i.e. if you know you're only using one of them, turn the other one off. It's a long post, but offers some wireless setup config and battery saving tips. :ninja: Edited February 25, 2015 by Guest
Guest r00tmydevices Posted February 25, 2015 Report Posted February 25, 2015 Many thanks indeed CaptainMight. Will do as you suggested, get inSSIDer app installed and go through the settings. I did see and change to 2.4Ghz only in wifi settings on my h2 as my access point uses that frequency (not 5Ghz).
Guest r00tmydevices Posted March 8, 2015 Report Posted March 8, 2015 (edited) CaptainMight Installed Wifi Analyzer (free) after seeing inSSIDer costs £6! Are you familiar with this app and if so any help with which settings I should look at and/or change that might help reduce battery drain would be appreciated? It is looking more and more likely I shall need to get in touch with Tesco to arrange an exchange on my h2 though. Earlier battery drained from 97% down to 14% in well under 90 mins. Plugged it in to charge using PortaPow charging cable and red charging light changed to green and display said battery was 100% charged approx. 15 minutes later! Edited March 8, 2015 by r00tmydevices
Guest Posted March 8, 2015 Report Posted March 8, 2015 (edited) Well looks like inSSiDer has either changed hands or been bought up by another app company. The version that I have on all my devices was free and uses different app icons to this new 'in' Metageek version - c'est la vie - well I'll no longer recommend it now as it's a good info app but not work £6. It looks like Wifi Analyzer (free) has more functionality anyway, as well as providing the same detailed wifi info, so a great alternative and prefered choice now. Although it sounds like you have either a hardware battery issue or your hudl2 battery calibration is so far gone it makes no sense, the tricks with wifi battery optimisation are to conduct a wifi survey of your area and determine which is the least used non-overlapping channel (on 2.4Ghz, 1, 6 or 11 only) to set your access point on. Doing so helps your hudl2 from having to over power it's wifi circuity more than necessary to compete with neighbouring wifi interference. The less interference it 'hears' the less power it needs to successfully transmit packets to your access point. This form of battery saving may appear small, but in continuous use can have a big effect - but nowhere near as big as you're seeing. Just out of interest have you ever done 3x full charge/discharge cycles back to back? i.e. run your hudl2 completely flat, leave off on charge until fully charged (say 5/6hrs) then unplug it and run it completely flat again (by using bench test software etc), then do the same again another two times. This would help to calibrate android software charge settings - but maybe some hudl2's are just too 'iffy' to be corrected by such techniques? Edited March 8, 2015 by Guest
Guest Posted March 8, 2015 Report Posted March 8, 2015 (edited) (posted by mistake) Edited March 8, 2015 by Guest
Guest r00tmydevices Posted March 8, 2015 Report Posted March 8, 2015 (edited) After reading someone mention about an inherent issue with Android devices, I did fully charge my h2 then let it run completely flat until it switched itself off then plugged it into the mains using both the stock Tesco charger and cable plus more recently using a PortaPow charge only cable which a couple of members recommended as being the bees knees! Did this a few times although not sure if it was 3x back-to-back? Nothing that I have tried thus far has made it clear what is causing the battery to drain so rapidly nor has it made any noticeable difference to how much life I can get out of a full charge. Yesterday the battery level dropped from 97% down to 14% in under 90 mins of light Internet use and that wasn't constant use neither. Plugged in PortaPow cable, with device in standby and red charging light changed to green in around 15 minutes and then displayed battery was now at 100%! Obviously that's very unlikely it charged itself fully that quickly. Perhaps this is where part of the issue lays? Had a very quick look at the display graph in Wifi Analyzer and there's a total of three wifi networks running here. There does not appear to be any overlap between them. My own wifi network seems to run at the top end of the channels (9 to 11?). Which bench test software would you recommend to drain the battery fully before switching it off then fully charging it back up again? What is the best method of backing up everything on my h2? Titanium got mentioned by one member. £4 I believe? Don't mind paying that unless there's other, better or cheaper methods/apps that will do the job. Basically, if possible, I'd like to backup everything (root, apps, settings etc) so if I have to return my device, I can first unroot plus wipe it fully. Then once I have the exchange unit (or this one after its repaired) back, I can simply select an option to restore from backup and then I'll be back to where I was. No faffing around having to re-install each app etc. Edited March 8, 2015 by r00tmydevices
Guest pudpoh Posted March 8, 2015 Report Posted March 8, 2015 Seconded CatainMidnight, if you haven't already give that suggestion a go. Make sure to charge it powered down.
Guest state-it Posted March 8, 2015 Report Posted March 8, 2015 (edited) What is the best method of backing up everything on my h2? Titanium got mentioned by one member. £4 I believe? Titanium is the bees knees, if wrapped in a somewhat clunky UI. It is root only though, so I haven't used it on HUDL2. I've used Titanium for a few years now. Before that I used Rerware's MyBackup Pro, which worked really well and is still does judging by it's rating on play.google.com - which AFAIK good for non-root. Edited March 8, 2015 by state-it
Guest mrrog Posted March 9, 2015 Report Posted March 9, 2015 is this viable for non rooted devices:- http://www.techrepublic.com/article/how-to-create-a-full-backup-of-your-android-device-without-root/ don't really know enough myself to have a view
Guest r00tmydevices Posted March 9, 2015 Report Posted March 9, 2015 is this viable for non rooted devices:-http://www.techrepublic.com/article/how-to-create-a-full-backup-of-your-android-device-without-root/ don't really know enough myself to have a view I know it states without root but does anyone know if this method will also work on rooted devices? If so, my guess is they've stated without root to mean that root is not required (as with some other methods of creating a full backup) in order to use this method.
Guest r00tmydevices Posted June 7, 2015 Report Posted June 7, 2015 Decided it was finally time to contact Tesco regarding getting my unit repaired/exchanged. The battery has never lasted more than a few hours, often it's been a couple of hours for it to deplete from 100% to zero before switching itself off. The gentleman I spoke to suggested trying all types of things but I had already tried them all plus more. He, like myself, felt it 'might' not be a software issue but instead a hardware one and has arranged for it to be collected early next week. Turnaround time quoted to be between 3-5 working days. He is also sending out a new mains charger just to rule that element out. Can't think of any other item of technology that has frustrated me as much as this tablet and it's dire battery life. Most of the time I was simply using it to read up about apps that might help resolve the battery issue. None of which worked. Tried using a different charger plus a different charging cable. Made no difference. Removed root. Did a reset then a full factory reset and deleted all stored data.
Guest r00tmydevices Posted June 15, 2015 Report Posted June 15, 2015 Received back my hudl 2. Same unit as before. Device had 30% battery charge when I switched it on. Tesco included a new 1.8m charging cable which I used to charge it via the mains. Even with the screen on it displayed 'charging (AC)'. Red charge light was lit. 20 minutes later that had changed to green and according to status in settings, battery is 100% charged. Basically the very same problem I've had since day one. Will give Tesco technical support another call to see what, if anything, they actually did to my unit as the problem does not seem to have been fixed on first inspection! The saga continues...
Guest MucuCat Posted June 15, 2015 Report Posted June 15, 2015 Received back my hudl 2. Same unit as before. Device had 30% battery charge when I switched it on. Tesco included a new 1.8m charging cable which I used to charge it via the mains. Even with the screen on it displayed 'charging (AC)'. Red charge light was lit. 20 minutes later that had changed to green and according to status in settings, battery is 100% charged. Basically the very same problem I've had since day one. Will give Tesco technical support another call to see what, if anything, they actually did to my unit as the problem does not seem to have been fixed on first inspection! The saga continues... my hudl 2 has 4h of screen on time from 100%-0%. should it have more?
Guest r00tmydevices Posted June 16, 2015 Report Posted June 16, 2015 According to a number of posts that I've read on various threads, other members have had significantly more time out of a full charge. Although 4-5 hours is what I was expecting.
Guest MucuCat Posted June 16, 2015 Report Posted June 16, 2015 According to a number of posts that I've read on various threads, other members have had significantly more time out of a full charge. Although 4-5 hours is what I was expecting. they get more than that? i bought refurbished hudl 2. and looking at battery stats my display always takes atleast 70% of the battery which means that there is no app that draws power from it and its always on minimum brightness.
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