Q: How to get to the engineering menu?
Dial in the dialer * # * # 7378423 # * # *
Q: Is there a factory film and is the Sony logo on it?
A: The film is present. The logo is on it.
Q: How to transfer games to an external drive?
A: With the help of this program:В® FolderMount(root required)
Q: What are the differences between C6902 / C6903 / C6906 / C6943? In which there is LTE, and in which there is not?
ABOUT:Sony Xperia Z1 - Purchase
Q: Does film removal affect warranty?
A: SONY answer: “If necessary, the protective film can be easily removed. This will not cause any problems with the warranty service of the smartphone. From the point of view of the device’s performance, nothing will change either.”
Q: The phone is waterproof, but the headphone jack is not covered with anything, isn’t anything going to happen to it?
A: This connector is designed using a new technology (CTIA standard) and allows moisture to enter it. The only thing is that it is not recommended to insert the headphones within two hours after bathing. It is important that all other connectors are tightly pressed with plugs.
Q: What should I do if the phone freezes and does not respond to anything?
Рћ: If you hold down the power button and the upper volume rocker button for a few seconds, the phone will turn off. Also under the stub where the SIM card is located, there is a small red button and when you hold it, the phone will reboot.
Q: How to choose a headset?
A: There are two main standards for connecting a headset - OMTP and CTIA. The difference between these two standards lies in the pinout of the 3.5 mm jack. Sony Xperia Z1 supports the CTIA standard. Therefore, when you connect a headset with a different standard to the phone, you may experience its limited functionality or complete inoperability.
Q: Where is the phone information? A: Put the phone face down, open the blank of the SIM card slot, remove the SIM card tray. Under it, on a sliding plate, from two sides all the necessary information.
Q: How to go to safe mode?
ABOUT:Sony Xperia Z1 - Official firmware
Q: How to correctly loop the ringtone?
ABOUT:Sony Xperia Z1 - Discussion
Q: How to check bootloader status?
ABOUT:Sony Xperia Z1 - Official firmware
Q: "Magnetic" cable or adapter for charging only? Or how can the data cable also use it?
About: Only for charging

CPU: Qualcomm Snapdragon 800 MSM8974 2.2 GHz 4 core Krait 400
GPU: Adreno 330 450 MHz
Screen: 5-inch TFT (Triluminos) display with a resolution of 1920 * 1080 pixels (441 ppi), max. brightness - 460 cd / m², contrast - 600: 1, physical size: 11.07cm x 6.23cm
Operating system: Android 4.2.2 Jelly Bean
RAM: 2 GB (1751 MB available)
Battery: 3000mAh Li-polymer 11.4Wh 3.8V
Built-in memory: 16 GB, there is a slot for memory cards microSD, microSDHC, microSDXC up to 64 GB
Camera: rear 20.7 Mp (G Lens) with Sony Exmor RS 1 / 2.3 inch matrix with LED flash, aperture F / 2.0, Bionz for mobile processor
frontal 2 Mp
Dimensions: 144 x 74 x 8.5 mm
Weight: 169 grams
Modules: Wi-Fi (802.11 a / b / g / n / ac 2.4GHz / 5GHz), Bluetooth (v 4.0), GPS, NFC
Network: Supports GSM / UMTS / HSPA + / LTE networks
GSM / EDGE / GPRS (850, 900, 1800, 1900 MHz)
UMTS / HSPA + 850 (Band V) MHz, 900 (Band VIII) MHz, 1700 (Band IV) MHz, 1900 (Band II) MHz, 2100 (Band I) MHz
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20)
Connectors: MHL, microUSB
Headphone Out: 3.5 (open)
Features: Dustproof and waterproof (IP58), protective film on both sides of the device
Other: Gyroscope, light sensor, magnetic sensor, digital compass

Battery problems and solutions
Manual for disassembling Sony Xperia Z1 (in Russian) + video instruction
The "Sony Mobile Battery test" for battery testing
Archive with all standard sounds.
Decision on writing files to an external card
How to remove a word from the list of suggested text gestures
Solution with the replacement of the greeting file (recorded on smart) with a third-party in a regular answering machine in firmware 4.4.2
Covers
Accessories
About Triluminos Technology
User's manual
Parse Z1 (in Chinese)
DC 31 docking station. Unpacking
Supported Memory Card Formats
Activate the NFC enable tray icon
Emergency shutdown or reboot of the smartphone
File exchange with BB "through the air", without touching the stub
SONY's official response to the rumors of "different displays"
A simple mod that allows you to "Close all" recent applications
Sony Mobile Battery test