After the recent iOS upgrading to version 13, many older iPhones such as iPhone 8 turn to be running slower, although there are many new features. New features and functions use more CPU/GPU/memory and the iOS may run slower. But are there any methods to make it run faster? After quite some research and testing, […]
How to check CPU working frequency in iOS on iPhone, such as my iPhone 6? The Litum Info Lite free app (Litum Info full version app) can show you the info of CPU including its frequency. The CPU frequency: You can find the CPU info page from the menu: Answered by Eric Z Ma.
After upgrading to iOS 9.1, my iPhone contacts searching does not work showing “No results”. How to fix it? The trick is to create a group in your contacts. However, you can not do it on your iPhone. But there is a method: Sync your iPhone contact with iCloud (so you will need to enable […]
There are various lightning cables on the market. I ever purchased one but it does not work for iPhone 6… How to identify a certificated lightning cable that is good for iPhone 6? (I know the cables from Apple will definitely work. But it takes time to receive one from Apple or not always easy […]
But.. how to use the OpenVPN together with Ovpn Spider on iPhone? You can check OpenVPN + Ovpn Spider: Free VPNs for iPhone Users. Answered by Eric Z Ma.
I host lost the password of my iPhone. How to erase or reset it? Check Forgot passcode for your iPhone, iPad, or iPod touch, or your device is disabled from Apple for how to reset the passcode. As all methods will erase your iPhone, the “Recovery mode” method may be the most easier and reliable […]
How to use iPhone to browse blocked websites in mainland China? FYI: on iPhone, these 2 Apps are the favorite combination I am using for visiting blocked websites in mainland China: Check OpenVPN + Ovpn Spider: Free VPNs for iPhone Users for how to use them together. OpenVPN is for setting up OpenVPN VPN connection. […]
This tutorial introduces how to make Chrome accept self assigned ssl keys for websites: https://www.systutorials.com/50204/making-chrome-accept-self-signed-certificates-on-linux/ However, on iPhone, Chrome blocks me from access sites with self assigned keys. How to make Chrome on iPhone also accept the ssl keys? At the time when I wrote this reply, there is no way to add Certificate Authorities […]
I prefer Linux Mint (I am using Cinnamon) not automatically mounting a portable storage such as USB disk or iPhone for me and I would like do the mounting manually if I need it. The default behavior of Linux Mint is to automatically mount the disks. How to disable this? The auto mounting on Linux […]
How can I force iPhone to reboot/restart/reset when it locks up completely and does not response? To force an iPhone to restart: Press and hold the iPhone’s power key and home button together. Holding the two keys for around 10~15 seconds until the screen is turned off. Release the buttons once the screen lights up […]
How to backup iPhone on Linux? Not using iTunes or Windows. You can backup iPhone using libimobiledevice. By the time I replied here, it supports up to iOS 7. Please check this post for a tutorial. Actually, the methods introduced can be used on Linux systems with the libimobiledevice installed. Backup iPhone: idevicebackup2 backup ~/iPhoneBackups/ […]
The video files copied from iPhone is rotated by 90 degree when they are played on Linux. How to rotate a .mov video from iPhone by 90 degree on Linux? Specifically: 1) Play the video by rotating 90 degree. 2) Edit the video by rotating 90 degree and save it. You may check Rotating Video […]
How to un-trust a computer that I have trusted with iOS 7 device, such as iPhone? You can delete the Lockdown folder to reset the trust/un-trust status of iPhones. Apple provides tutorials for Max OS X and Windows at: http://support.apple.com/kb/TS5335 (archived) . If you are using Linux, the Lockdown folder is: /var/lib/lockdown Answered by Lucy.
How to jailbreak iOS 7.1.2 on a iPhone 4s? The Pangu Jailbreak Tool ( http://en.pangu.io/ ) works like a charm for my iPhone 4S with iOS 7.1.2. Remember to back up your data before jailbreaking your iPhone. Answered by Eric Z Ma.
Which video player for iPhone is good for uploading video files from my computer and watching them? For example, I download some video files and would like to watch them on my iPhone on the go. I know iTune can do this. But I am on Linux and I want something easier. Many apps can […]
gthumb hangs at startup on Fedora when I plugged my iPhone on the USB. How to solve this? You need to unmount the iPhone: Open nautilus. Press F9 (may need twice) to open the side panel if it is not opened yet. Find your iPhone on the side panel and unmount it by click the […]
I find Chrome on my iPhone caches pages/css/js files. That makes browsing faster. However, under some situation, I’d like to force it refresh the pages/css/js and give me the latest one. How to force Chrome on iPhone refresh pages and invalidate the caches? The only method as far as I can find is to clear […]
I backup my iPhone with iTune to my local computer. Where can I find out the backup files of my iPhone by iTune? And how to get the real files (like songs, notes, etc.) from the backup files? The location of the backup files from iTune It depends on the computer’s operating system: Mac: ~/Library/Application […]
How to Sync the Contacts in My iPhone with Google Gmail Account? To sync your Google contacts, one good method is using CardDAV. You’ll be able to edit, add, and remove contacts from your device and keep them in sync with your Google Gmail account. It is straightforward: Open the Settings application on your device. […]
iPhone has the touch screen. Is is possible to turn my iPhone to a wireless mouse on Linux? Use the WiFi Mouse app/server: http://wifimouse.necta.us/ First, install the WiFi Mouse app on you iPhone: https://itunes.apple.com/app/id591076411?mt=8 Second, install the WiFi Mouse server downloaded from http://wifimouse.necta.us/ If you are using Fedora Linux, you need to convert the .deb […]