1.Hardware problem 

1.1 The front camera position is dark
Reason: The TFT screen is disconnected at the blind hole position, and the light cannot be completely transmitted to the top, resulting in a dark phenomenon at the top of the front camera. The process is difficult. Friends also have the same situation. Our level is equivalent to that of friends.
Reference Words: Hello, I am sorry to bring you a bad experience. This is a common phenomenon of blind hole screens and does not affect the camera function. Please rest assured to use it.

1.2 Side fingerprint scraper
Reason: The fingerprint recognition cover is too thin, and the process is restricted to be chamfered. If the fingerprint protrudes, it will have a scratching feel, which will not affect the use. 
Reference Words: Hello, sorry for the bad experience. The side fingerprint processing technology is spraying + cutting, and the side has a sharp edge structure without chamfering, so there will be a slight scratching feel. Other models of side fingerprints currently on the market have the same problem. Our company is still actively improving this problem to provide users with a better sensory experience.

1.3 Cracks in plate disassembly
Reason: In order to provide users with the ultimate light and thin test, our company uses 0.55mm plates, which are thinner, and there will be certain cracks when you do not pay attention to repair and disassembly.
Reference Words: Cracks can only be seen when facing the light at a fixed angle, and generally do not affect the experience, and it is emphasized that they will be fed back to internal improvements;

1.4 The buttons feel weak
Reason: In order to ensure the scratching feel of the side fingerprints, the amount of protrusion of the fingerprints is small, and the feel may be weak
Reference Words: The buttons are unlocked by touch by default, giving users a more technological and convenient experience, and in order to enhance the user's comprehensive experience, under the premise of ensuring functions, it balances the scratching and feel, and achieves the best overall;

1.5 The buttons feel hard
Reason: In order to prevent scratching the hand, the amount of fingerprint protrusion is relatively small, and the pressing stroke is relatively small, which will give people a harder feeling;
Reference Words: The buttons are unlocked by touch by default, giving users a more technological and convenient experience, and in order to enhance the user's comprehensive experience, under the premise of ensuring functions, it balances the scratching and feel, and achieves the best overall;

1.6 Fingerprint button is too loud
Reason: In the case of extremely poor shell material matching, the dome interference is large, and the resonance sound caused by rebound is large, and it will be more loud than conventional keys in a quiet environment;


1.7 Power button tilt
 Reason: The power button has an infinite structure in the card slot. FPC pulling will cause the power button to tilt slightly
Reference Words: Reno4 Z 5G uses side fingerprints to improve the integration of the appearance of the fuselage. In order to ensure the feel of pressing, the design adopts a slightly stronger device, which may appear a little loud when pressed;

1.8 Volume key specific angle leakage structure
Reason: The volume key gap is normally controlled, and the volume key PET is not attached or the black plating process is used to cause the volume key FPC to be visible at a specific angle
Reference Words: The phone has undergone multiple rigorous tests before leaving the factory, this kind of noise does not affect the fingerprint function;

1.9 Visible internal structure
Reason: The top surface of the camera is cone-shaped, and the internal structure can be seen. Black plating process has been used.
Reference Words: We will continue to improve the side fingerprint experience, and thank you for your suggestions;

1.10 Rear three or four shots offset
Reason: The design tolerance cannot be met. Within the scope of the quality standard, the same situation exists in the friends. Our company is at the same level as the friends.
Reference Words: Hello, I’m sorry to have brought you a bad experience. The diameter of the screen printing hole of the rear three-four-lens lens is one of the smallest in the industry. The camera position has a slight deviation. We have passed multiple production tests to verify that this deviation does not affect the photo. Function, please rest assured to use.

1.11 Touch screen protective film scraper
Reason: The touch screen protective film uses a cheaper 2D protective film, and there is no arc around it, and the feel is equivalent to A11
Reference Words: Most users wear a protective cover, which is protected by a protective cover, and will not scratch your hands in actual use; in order to enhance the effect of the protective film to protect the screen, the protective film has a certain thickness, and it is recommended that users wear a protective cover.

1.12 Fingerprint key press noise
Reason: There is a tolerance for the matching size of the upper and lower cover shell materials. In the case of extremely poor performance, there will be a small probability that the upper cover is 0 matched. Pressing the fingerprint will drive the upper cover to rub and make a slight noise;

1.13 Abnormal sound when the middle frame is pressed loosely
Reason: The external expansion of the lower cover + screwing increases the external expansion + the size of the buckle is extremely poor, and there will be a small probability of loosening of the buckle.

1.14 Abnormal sound of battery cover pressing
Reason: The lower cover extension + the size of the bone inserts are extremely poor, and there will be a small probability of bone deformation, and abnormal noises of the bones scraping when pressing in the Z direction;
Reference Words: There is a certain degree of tightness on the cabinet, and pressing may cause slight looseness or noise;

2.Hardware problem

2.1 Wifi game play has high latency and freezes
Reason: The online game delay is related to the status of the wifi network, mobile phone performance, game service, and router at the time. These factors may affect the game experience
Reference Words: 1. It is recommended to use the left hand phone to play the game (ps: the premise is that the user is holding the game horizontally, such as King of Glory; the left horizontal holding means that the camera is in the left hand position when the phone is horizontally screened), and the left horizontal holding is more difficult to hold Antenna, mobile phone performance may be better
2. It is recommended to reset the router or adjust the wifi network status before playing the game, it may become smoother
2.2 Connecting to WIFI, the WIFI is not disconnected but the Internet is slow or unable to access the Internet
Reason: The current problem of probabilistic slow Internet access in WIFI has not been analyzed. The problem is related to its own platform architecture, environmental interference, router compatibility, and the behavior of third-party applications.
Reference Words: If WIFI access is slow or suddenly unable to access the Internet, please compare whether the problem occurs with other mobile phones at the same time, or use other routers to access the Internet to confirm. If only the current mobile phone has problems, please help to grab the comparison log or contact us, and try your best Collect information such as the router model, broadband, and number of problems that users use, thank you.

2.3 Mobile moving is slow
Reason: Moving two mobile phones too close to each other may affect the antenna performance of the mobile phone. For example, placing two mobile phones side by side or overlapping each other may result in slow moving.
Reference Words: It is recommended to put the distance between the two mobile phones moving between 3~10cm

2.4 Mobile phone screen cannot be used, or TV cannot be searched
Reason: Many users don’t know how to use mobile phones to cast screens
Reference Words: You need to connect your TV or TV box and your mobile phone to the same router WIFI. The TV or TV box supports screen projection and turn on the screen projection function. Enter the settings of the mobile phone-other wireless connections-mobile phone projection-open, search After you get to the TV, click Connect. If you can’t find the TV, you need to confirm whether the TV has the screen projection function turned on. You can use the same operation with other mobile phones to try if you can cast the screen to this TV.

2.5 The phone cannot scan and connect to Bluetooth devices
Reference Words: 
1) Ensure that the Bluetooth device has sufficient power and is within the Bluetooth communication range (10 meters)
2) Confirm whether the Bluetooth device has entered searchable pairing mode. Most of the in-vehicle devices need to enter the designated search connection interface; the Bluetooth headset/audio needs to long press the power button, the red and blue lights flash alternately and quickly to enter the searchable pairing interface
3) Operate through the operation manual of the Bluetooth device to confirm whether you need to search and connect in the specified APP application interface. If you need to connect through the APP, make sure the location service switch is turned on (down the status bar-open the location service)

2.6Mobile phone connected to AAC Bluetooth headset does not show support for AAC
Reason: Although some Bluetooth devices clearly support AAC, the Bluetooth device is not very compatible with the AAC function. In order not to affect the experience, we have turned off the AAC function for the Bluetooth device. Other Bluetooth devices that support AAC can use the AAC function normally.
Reference Words: Although some Bluetooth devices clearly support AAC, the Bluetooth device is not very compatible with the AAC function. In order not to affect the experience, we have turned off the AAC function for the Bluetooth device. Other Bluetooth devices that support AAC can use the AAC function normally.

2.7 AirPods does not support absolute volume
Reason: Due to a problem with the low version of the airpods firmware, the absolute volume cannot be well supported, so the absolute volume is turned off
Reference Words: Some airpods with lower firmware versions have flaws in the absolute volume support and will be turned off by default. If the phone cannot adjust the headset volume, it is recommended that users connect to an Apple phone or ipad to upgrade the headset firmware. The upgrade method is: airpods charge more than 70%, connect Iphone and iphone can be connected to internet wifi, enter the settings---general---about this machine---enter the airpods details, click once on the firmware version, and wait for 2 hours to upgrade automatically. The latest firmware version is 2A364. If you can’t upgrade, you can manually enter the developer options to turn on the absolute volume, then reconnect the airpods and adjust the headset volume to the maximum, and then close the developer options

2.8 The compatibility of airpods is not good, and there are phenomena such as disconnection, music playback, and freezing.​​​​​​​
Reason: Due to a problem with the low version of the airpods firmware, it cannot support other mobile phones other than the iphone.
Reference Words: 
Airpods is not very compatible with other mobile phones except iphone phones. If you encounter airpods disconnection, music playback, freezing, etc., it is recommended that you upgrade the airpds to the latest firmware, and the headset volume cannot be adjusted. It is recommended that users Connect Apple mobile phone or ipad to upgrade the headset firmware, the upgrade method is: airpods charge more than 70%, connect to iphone, iphone can connect to Internet wifi, enter settings---general---about this machine---enter airpods details, click once on the firmware Version, wait for 2 hours to upgrade automatically, the latest firmware version is 2A364.

2.9 The call suddenly hangs up, and the signal bar shows no signal.​​​​​​​
Reference Words: The call experience is closely related to the signal strength of the environment. Please check whether the signal is weak or no signal; if the signal is normal but the problem occurs frequently, please contact customer service or after-sales service.

2.10 5G is sometimes displayed during a 5G call, and sometimes not displayed​​​​​​​
Reference Words: 
1. In the 5G state and VoLTE is turned on, 5G will be displayed during a call, but the network will adjust the phone's network according to the user's current network environment during a VoLTE call. When the camped network does not support 5G, it will display 4G.
2. In the 5G state, when the VoLTE switch is not turned on or the VoLTE service is not activated or the network does not support VoLTE, the call establishment will fall back to the 3G or 2G network.
Supplementary note: The current 5G call plan is 4G VoLTE HD voice call or 3G/2G call.

2.11 Playing the phone while it is charging, or playing games continuously for too long, will cause the phone to become hot, causing the temperature control band limit to cause the game to freeze
Reason: Poor heat dissipation capacity of mobile phone, high current during charging
Reference Words:  Argument 1: Playing games for a long time or charging to play games can easily cause the temperature to rise. It is recommended that you let your phone rest for a while before continuing to play games
Saying 2: If you experience freezing while playing games, and the temperature of your phone is high, it is recommended that you let your phone rest for a while, cool the phone to room temperature, and then continue playing the game

2.12 Game lag
Reason: Severe scene, network freeze
Reference Words: 
Argument 1: When the network is delayed, there may be a feeling of lag. It is recommended that you go to a good network environment for a better gaming experience;
Argument 2: If the game continues to freeze, it is recommended that you lower the game configuration, the game experience will be smoother
Saying 3: If there are too many programs hanging in the background, it is recommended that you clean up the background programs, the game experience will be smoother

2.13 The team voice of the game will sometimes be echoed​​​​​​​
Reason: Note: In speaker mode, the sound played by the speaker will be recorded by mic
Reference Words: Reference language: In a voice call in speaker mode, the game sound played by the speaker will be recorded by mic. If you hear your own echo or other people's game sound, it may be caused by the poor echo processing effect of the other party's machine; if so If others hear the echo, it is recommended that you turn down the speaker sound slightly, or use headphones, please understand.

2.14 Voice echo and noise appear when both parties play games in close quarters​​​​​​​
Reason: Note: In speaker mode, the sound played by the speaker will be recorded by mic
Reference Words: Reference language: In the speaker mode, team up game voice at close range. If the two mobile phones are too close, it will affect the processing of echo cancellation and cause noise, piercing and sharp sound, echo and other phenomena. It is recommended that you reduce or increase the speaker sound slightly Please understand the inconvenience caused by the distance between two mobile phones, or the use of headset mode

2.15 Function instruction: connect K song, live broadcast external sound card for video recording, vocal and accompaniment mixing​​​​​​​
Reason: Note: It is recommended that you turn on Sound and Vibration -> Default Sound Recording Device -> External Device, and use an external sound card for video recording and vocal and accompaniment mixing to achieve the best live broadcast/K song effect
Reference Words: ​​​​​​​Speech: This function recommends that you turn on Sound and Vibration -> Default Sound Recording Device -> External Device, and use an external sound card for video recording, vocal and accompaniment mixing to achieve the best live broadcast/K song effect

2.16 I turned on the earphone of the mobile phone, and the K song earphone sound is small/poor
Reason: Note: If both the system ear return and the application ear return are turned on at the same time, the application ear return is effective
Reference Words: ​​​​​​​Talking: It is recommended that you turn on the system ear return, close the application ear return, the earphone return has a better effect

2.17 Speaker mode sound effect cannot be switched; Dolby sound effect switching effect is not obvious in some scenes
Reason:  Note: The speaker mode Dolby sound effect is fixed on, the design is like this; the switching effect has a lot to do with the sound played when switching, for example, some songs are not obvious to switch, and some songs are more obvious
Reference Words: ​​​​​​​​​​​​​​ The sound effect of real original sound technology in speaker mode is fixed on, but you can switch between different sound effects. The design is like this; if you feel that the effect of headphone mode sound effect switching is not obvious, you can manually select the music mode and adjust the graphic equalizer, there will be obvious effect changes.

2.18 The brightness of the game is too bright or too dark to be automatically adjusted
Reason:  Description: After entering the game, the backlight will automatically turn off, the design is like this
Reference Words: Reference Words: After entering the game, the default switch to manual brightness, the design is like this, you can slide down the game interface and pull out the control center to manually adjust the brightness, drag the backlight bar to choose a comfortable brightness; if you don’t want to switch to manual brightness, you can Pull up the menu in the game space to set, turn off the brightness lock. Please forgive me for the inconvenience caused.

2.19 Automatic backlight, the screen is darker/brighter/not automatically adjusted
Reference Words: 
The external light perception scene is more complicated:
①This situation may be caused by manually dragging the brightness bar, please turn off the automatic brightness and turn it on again to restore the normal brightness.
② The light perception is under the screen on the upper right part of the front of the mobile phone. Be careful not to block it during use. If you encounter dimming, you can try to deflect the light perception towards the light source.

2.20 Standby power consumption fast
Reference Words:
 Saying: 5G part of the power consumption is higher than 4G/wifi
Suggest:
1. Turn on the smart power saving scene (settings-battery-smart power saving scene)
2. Prohibit self-starting and background running of non-essential software (settings-battery-smart power saving scenarios)
3. Disable notifications for non-essential software (Settings-Notification and Status Bar-Notification Management)
4. Frequently clear background processes and clean up unnecessary software

2.21 Bright screen uses fast power consumption
Reference Words: 
1. 5G part of the power consumption is higher than 4G/wifi
2. The 120hz screen refresh rate leads to an increase in power consumption
Suggest:
1. Turn on the smart 5G switch (Settings-SIM card and traffic management, select the SIM card and click to select smart 5G)
2. Modify the screen refresh rate to smart switch or 60HZ (settings-display and brightness-screen refresh rate)
3. Turn on the automatic brightness adjustment function (settings-display and brightness-automatic brightness adjustment)

2.22 The touch screen does not slide smoothly
Reason:  LCD Incell screen, material difference with OLED screen
Reference Words: Keep your fingers and screen clean, you can try to replace the phone film.

2.23 Fingerprint unlock success rate
Reason:  The capacitive side fingerprint is adopted. Due to the principle of capacitance, the fingerprint is unlocked to keep the fingers clean without the interference of grease or water.
Reference Words: Using capacitive side fingerprint:
1. Since it is shared with the power button, the fingerprint contact area is small, please try to cover as much area of your finger as possible when entering
2. Due to the principle of capacitance, keep your fingers clean when unlocking the fingerprint, without the interference of grease or water.

2.24 9V2A charging
Reason:  Adopt 9V2A fast charging solution
Reference Words: 
1. The 9V2A fast charging solution can charge half of the battery in 40 minutes, and it can be fully charged in about 120 minutes, which is equivalent to the 18W charging speed of a friend, and a bit slower than the VOOC flash charging 20W.
2. Compatible with 9V2A adapters such as Xiaomi/Huawei/Samsung etc.
3. Support PD and QC charging protocol
4. Temporarily not compatible with VOOC flash charging and SuperVOOC, if you use this adapter to charge, it can only reach 5V2A ordinary charging