OPPO phones sometimes hang up automatically when suddenly calling?

1. Incorrectly touching the hang-up key during the call caused the phone to hang up. Please try again.

2. The network signal is unstable and weak. It is recommended to restart the mobile phone and search the network again before making a call or changing the use environment.

3. Due to the failure of the SIM card of the mobile phone, please try to replace the SIM card if possible;

If the above methods fail to solve your problem, please take the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and handling.

Extended data:

OPPO product service policy

Thank you for using OPPO mobile phone. We will implement a comprehensive three-guarantee policy in accordance with the regulations on the responsibility of repairing, replacing and returning mobile phone products, and provide you with services no less than the national three-guarantee policy.

There is no reason to return the goods for one or seven days.

Mobile phones purchased by customers in official direct-selling or officially authorized shops of online shopping platforms shall be returned within 7 days from 0: 00 the next day after receiving the goods according to the requirements of Consumer Law and Interim Measures for No Reason to Return Goods Purchased on the Internet for Seven Days (7 days from 0: 00 the day after the buyer signs the goods, 7 days after 168 hours, and the time for the buyer to sign the goods shall be subject to the logistics signing time).

OPPO mobile phone enjoys the prerequisite of no reason to return within 7 days, and the returned mobile phone is not activated intact; The goods are tested by OPPO Customer Service Center and can only be returned if they are not activated properly.

7 days no reason to refuse to return the goods:

1) The activated OPPO mobile phone does not support the seven-day unreasonable return service (the mobile phone will activate and register the electronic security card after installing the SIM card and connecting to the data or WIFI network);

2) The returned mobile phone serial number does not match the outbound serial number;

3) Commodity quality problems caused by unauthorized disassembly, maintenance, misuse, collision, liquid intake, accident, incorrect brushing and installation, or tearing or altering labels, mobile phone serial numbers, network access licenses, etc. ;

4) The original packaging of the mobile phone is incomplete, and the standard accessories are incomplete;

5) The gifts presented with the order are not returned in full, and the packaging of the gifts is incomplete (unless the consumer agrees to pay the price of the gifts);

6) When purchasing, the page clearly states the goods that do not support returning.

Mobile phone products that do not meet the seven-day unreasonable return conditions will be followed up in accordance with the national three guarantees policy. Users should go to the local customer service center to handle it.

2.7 days exchange and 30 days exchange.

Within seven days from the date of purchase, the host product has a performance failure listed in the Performance Failure Table of Mobile Phone Products. In the case of complete mobile phone packaging, accessories and valid purchase certificate, you can enjoy the exchange or free exchange service according to the user's wishes. After the replacement, the validity period of the three guarantees of the new host product is recalculated from the date of replacement. If the fault described by the user does not recur within seven days after the first acceptance, if the same fault recurs within seven days after the first acceptance, the validity period of the replacement machine shall be subject to the first acceptance time.

Within 30 days from the date of purchase, the host product has a performance failure listed in the Performance Failure Table of Mobile Phone Products. In the case of complete mobile phone packaging, accessories and valid purchase vouchers, you can enjoy free replacement service according to the user's wishes, and the three-guarantee validity period of the new host product after replacement is recalculated from the date of replacement; If the fault described by the user does not recur within 30 days after the first acceptance, if the same fault recurs within 30 days after the first acceptance, the validity period of replacement shall be subject to the time of the first acceptance.

7-day exchange and 30-day exchange will not be processed:

1) Commodity quality problems caused by unauthorized disassembly, maintenance, misuse, collision, liquid intake, accident, incorrect brushing and installation, or tearing or altering labels, mobile phone serial numbers, network access licenses, etc. ;

2) Defects caused by third-party problems (bad operator network, bad third-party APK, SIM card, T card, computer driver, etc.). );

3) The problems of the accessories themselves (such as bad adapter, bad earphone, bad card protection and bad protective case) are not the conditions for the return of the host, and you can ask for a new accessory; 

Three, one-year warranty

Within one year from the date of purchase, if the mobile phone has a performance failure listed in the Performance Failure Table of Mobile Phone Products, OPPO Customer Service Center will provide you with a free warranty after providing a valid purchase voucher and warranty card and confirming that it meets the three-guarantee conditions through testing by OPPO Customer Service Center.

After the three-guarantee period is free of charge, or the mobile phone host that has been used for more than one year is under normal warranty (no liquid entry, external force, private repair, etc.). ) and pay for the maintenance. After the maintenance record is generated, the mobile phone host enjoys the remaining length of the original 12 month warranty period or the 90-day warranty period, whichever is longer. If the motherboard or display screen is replaced, the motherboard or display screen equipment enjoys the remaining period of the original 12 month warranty period or 65442 month warranty period.

The warranty period of abnormal over-warranty (such as liquid inlet, external force, private repair and other defects) of the mobile phone host is as follows:

1) When the mainboard and display screen are replaced and repaired at the same time, the mainboard and display screen are guaranteed for 180 days, and the other components of the host except the battery are guaranteed for 90 days;

2) Only replace and repair the mainboard, the mainboard is guaranteed for 180 days, the display screen is not guaranteed, and other components except the monitor, mainboard and battery are guaranteed for 90 days;

3) When only the display screen is replaced for maintenance, the warranty period of the display screen is 180 days, the mainboard is not guaranteed, and other components except the display screen, mainboard and battery are guaranteed for 90 days;

4) If the mainboard and display screen are not replaced for maintenance, only the replaced parts are guaranteed for 90 days, and the rest parts are not guaranteed;

If the product fails due to the following acts, you cannot enjoy the above three guarantees policy, and you will be charged for maintenance:

1) exceeds the validity period of three guarantees;

2) The product is corroded by liquid and moisture;

3) The product is damaged by external force (such as screen cracking and deformation). );

4) Dismantle the machine privately, maintain it by a third party, and refit the refurbished machine;

5) The serial number and warranty label in the product system are lost or changed; 

6) Physical damage and failure caused by irresistible external force (such as flood, fire, earthquake, lightning and other strong vibration or extrusion), such as broken or crushed display screen, deformation, etc. 

Four. Warranty instructions and principles

1) Effective warranty cards and invoices are the basic guarantee for realizing your rights and interests of the Three Guarantees, so please keep them properly;

2) If you lose the invoice and the three-guarantee certificate, and can't provide a valid copy of the invoice and the three-guarantee certificate, we will compare the registration date of the electronic insurance card with the 90th day after the product leaves the factory, and choose the date that is beneficial to you as the purchase date to provide your mobile phone with one-year free warranty service;

3) OPPO Company does not undertake the three-guarantee responsibility for other accessories (such as instruction manual and warranty card). );

4) The export products can be guaranteed in the domestic service center, and the validity period of the three guarantees adopts the mainland policy. Taking into account the actual situation of materials, make an appointment for maintenance;

5) If all the accessories have been replaced within the three-guarantee period, the three-guarantee period will be recalculated from the date of replacement. If it still doesn't work properly after being replaced twice, they may be required to return it at a separate sales price. 

6) Accessories (holster, adhesive film, protective cover), etc. , causing the local function of the mobile phone host to be affected or abnormal, which cannot be used as a condition for quitting the machine. You can ask for a new accessory. 

Matters needing attention when sending verbs (abbreviation of verb) for repair

Would you please send all the information you have stored before repairing the machine? (such as phone numbers, text messages, pictures, etc.). ) should be deleted after backup, so as to avoid loss or leakage in the subsequent maintenance process. In order to respect your privacy, OPPO Customer Service Center and its staff do not assume the responsibility and obligation to back up or restore data for you, and do not assume any consequences caused by data loss or disclosure.

References:

OPPO official website: after-sales service policy

OPPO official website: the call automatically hangs up.