Disabling System Apps) by Alan German
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Volume 35, Number 4 April 2018 TAKING CONTROL OF MY SMARTPHONE (Disabling System Apps) by Alan German ne of the things that attracted me As with many Android operations, the stopped it calling for future updates. But, to having a rooted smartphone prompts that occur during the process of if we ever want the app back, we simply O was the prospect of being able to disabling a system app are not particularly have to enable it (i.e. Settings – Apps – get rid of bloatware – notably those sys- clear. For example, I have no need for the Google Japanese Input – ENABLE). tem apps that are installed by default, but Google Japanese Input app since I never Initially, I spent some time with my root- which, as a regular user, I am not al- do – and probably never will – write Japa- ed phone and various apps (e.g. Titanium lowed to delete. Not only do these take nese characters. The process to disable Backup, Amaze File Manager) that used up space in the internal memory (which this app is as follows: the root access to remove certain system is always in short supply), but the rela- (1) Navigate to Settings – Apps – Google apps entirely. However, I found that tively frequent updates require considera- Japanese Input. there weren’t huge savings in disk storage ble time and patience for downloading to be had from this process over those and installing software that I never use. (2) Select the Google Japanese Input app and press the DISABLE button. obtained by simply disabling the same Rooting promised to change all that. system apps. So, when I installed a cus- However, while it is possible to uninstall (3) Ignore the warning message (“If you tom ROM, with an updated version of the system apps from a rooted phone, there disable this app, other apps may no longer Android operating system, and the associ- are potential downsides to such a function as intended”) and press the DIS- ated Gapps (Google applications), rather “drastic” course of action. One possibil- ABLE APP button. [Ignore this warning at than once more going through the some- ity is that removing a particular system your peril – of course! But remember – what tedious process of deleting various app may cause other apps to malfunction. you can always enable a disabled app, so system apps, I simply disabled them. Web postings also suggest that, for cer- that should fix any problems – shouldn’t it?] So, while there are specific benefits to tain devices (manufacturers), if an app is rooting a smartphone, in my view, the removed, it may not be possible to obtain (4) Now the strange message: “Do you ability to remove system “bloatware” the software to re-install the app should want to replace this app with the factory isn’t one of them. It’s much more effi- one subsequently wish to do so. version?” The answer really is – No, I cient to just disable unwanted system So, how can we avoid such pitfalls? want to delete this app completely – but apps. And, the beauty of this process for Well, there is a more moderate option the only real option is to press OK. Read- regular smartphone users is that this tech- available – one which is readily available ing between the lines, I think the prompt nique works on unrooted phones! really means: Do you want to remove any to owners of non-rooted phones – one Look for more on this series next month. can simply disable system apps. While installed updates, and return the app to this isn’t as comprehensive a solution as factory-fresh condition? In any case, the completely uninstalling an app, it does system indicates that it is “Uninstalling”, Inside this issue: still offer significant benefits. then goes back to the app screen, where the DISABLE button has now become Calendar / Coming Up / Raffle 2 This feature is reported to be available in ENABLE. So, it hasn’t really uninstalled Android 4.1 or above. Note, however, the app; it may have uninstalled some Taking Control of My Smartphone-Part 5 1 that disabling a system app doesn’t re- updates, but what it has done is disable the move it completely from your phone. It app (as the button promised). Stop the Presses! End of an era 3 will remove any installed updates, but the base software for the app remains stored (5) Hit the back arrow to return to the We’re not moving yet! 3 previous screen where Google Japanese in the phone’s memory. What it does do 2018 Beginners’ Workshop Last Call! 3 is prevent the app from running (e.g. in Input is now flagged as “Disabled”. the background), and from receiving any So, we have now disabled the app. In Controlled folder access 4-5 future updates. And, because the disabled doing so, we have minimized its footprint File Transfer using Dropbox 6 app is still stored on the phone, it can in memory (i.e. have removed any in- easily be re-enabled should you wish to stalled updates), have prevented it from OPCUG Free Software Guide—Part 80 7 do so. running and taking up resources, and have Contact Information 8 th Next Meeting: W, April 11 , 2018 Page 2 April Raffle This month’s raffle prize is the Case Logic LoDo Satchel. The thickly padded laptop compartment fits laptop with up to 15" screen size. Also includes a protective space for a 10” tablet. The unique wide-mouth opening pro- vides easy access and visibility to gear. It has a cotton canvas exterior with leather- wrapped handles and zipper pulls and an adjustable shoulder strap. Two easy-access external accessory pockets have magnetic snap-closure. The removable shoulder strap adjusts for a custom fit. Two interior pockets keep your gear neat and there are two exterior water bottle pockets. Tickets are $1 for one, $2 for three, or $5 for ten. March Prize Winner Coming Up… The winner of our raffle prize, an Our meetings are still at the Canada Aviation & Space Museum . XtremeAudio Pod Bluetooth Mini Round Speaker, was Richard Wednesday, April 11, 2018 Aylesworth. Speakers: Art Hunter and Stewart Dibbs Topic: Ottawa Microgrid This home microgrid generates and stores electrical energy, sells energy to the grid while storing and using geothermal energy. This presentation will briefly describe the project with emphasis on displays and energy flow control. Art Hunter will describe the project and what needs to be controlled and Stewart Dibbs will describe the control system, display, and the monitoring with links into Raspberry Pi3 platforms. A live demonstration of the sensor and display technology and the controller is planned. Art Hunter PhD and PC owner since 1984 has spoken to the OPCUG in the past on his energy freedom project. Now his project has 3 Tesla Powerwall 2 batteries, an Electric Vehicle, microFIT solar, Net Metering Solar and a control room. Geothermal in- stallation is scheduled for April 2018. Stewart DIBBS is a Computer Science graduate of Macquarie University (Australia) and principal at PiXCL Automation Tech- nologies in Gatineau. His experience includes product development with interpreted languages and compilers, imaging photome- ters, video, device drivers, USB sensor/control/LCD and LoRaWAN devices for Internet of Things applications. Wednesday, May 9, 2018 (details TBA) Wednesday, June 13, 2018 Annual Pizza Night and eWaste Event, plus a presentation afterward (TBA) For meeting updates and additional details, visit http://opcug.ca/meetings. 2018 CALENDAR Meetings Date Time and Venue 7:30 p.m. in the main Mauril Bélanger Theatre of the Canada Aviation OPCUG General Meeting Wednesday, April 11th and Space Museum, 11 Aviation Parkway. http://casmuseum.techno-science.ca/en/index.php Q&A Session Wednesday, April 11th Immediately following the OPCUG General Meeting. 10:00 p.m. (after the Q&A) at Liam Maguire’s, Beer BOF (Wing SIG East) Wednesday, April 11th Southeast corner of St. Laurent Blvd. and Innes Rd. Volume 35, Number 4 Page 3 CLUB LIFE End of an era: June newsletter will be last printed issue You will need a product capable of opening a .pdf file such as Adobe Reader (or perhaps another PDF viewer with fewer security vulnerabilities). A re- view of PDF-Xchange Viewer was written by one of our members and can be read at http://opcug.ca/public/Reviews/PDFXchangeViewer.htm. There is even a PDF viewer for Android: http://opcug.ca/public/Reviews/ MuPDF.htm. There are other PDF readers and a simple search on Google can help you find one. Both Adobe Reader and PDF-Xchange Viewer are free products and can be downloaded from these sites: Adobe Reader: https://acrobat.adobe.com/ca/en/acrobat/pdf-reader.html une will be the last time the Ottawa PC PDF-Xchange Viewer: https://www.tracker-software.com/product/pdf- News is put in print, a move the BOD has xchange-viewer J delayed for the last few years. With print shop and mailing costs in 2017 reaching almost There are hundreds of issues of our newsletter in PDF format dating back to $1400 (and being almost double that of any other 1984 and all but a few can be found in the Newsletters section of our website regular expense item), we could no longer justify at http://opcug.ca/newsletter. For at least 20 years these have been available the expense. We are, after all, a computer club in full colour, something that was never reproduced in print. The electronic and all our members are capable of viewing the version features email and website hyperlinks (no more typing these out!) electronic version on various devices or even and is distributed much sooner than the printed one, sometimes two weeks printing it themselves.