Example of electromagnetic shielding effectiveness test
NSA-94-106 : RF Shielding Effectiveness testing

EMCTEST Technologies, Via Marecchiese 273, Rimini, ITALY
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Scroll down and tap System .

Read the warning list. Tap Reset Phone or Reset Device .

Tap Backup & Reset (on some versions, look for "Reset Options").

A hard reset will erase ALL data from your phone’s internal storage, including apps, contacts, photos, music, videos, and saved passwords. It will not erase data on your SD card or SIM card, but it is recommended to remove the SD card before proceeding. Back up your data to Google Drive or a computer before starting. Method 1: Hard Reset via Settings (Easiest – Use if phone boots normally) Use this method if you can unlock your phone and access the main menu.

Open the Settings app (gear icon).

If prompted, enter your phone’s lock screen pattern, PIN, or password.

Select Factory data reset .

Tap Erase Everything or Confirm . The phone will restart and begin the reset process. This takes 2–5 minutes. Method 2: Hard Reset via Recovery Mode (Use if phone is frozen, locked, or won’t boot) Use this method if you forgot your password, the screen is frozen, or the phone is stuck on the logo.

Hard Reset Tecno Spark 8 - How To

Scroll down and tap System .

Read the warning list. Tap Reset Phone or Reset Device .

Tap Backup & Reset (on some versions, look for "Reset Options"). How to Hard Reset TECNO Spark 8

A hard reset will erase ALL data from your phone’s internal storage, including apps, contacts, photos, music, videos, and saved passwords. It will not erase data on your SD card or SIM card, but it is recommended to remove the SD card before proceeding. Back up your data to Google Drive or a computer before starting. Method 1: Hard Reset via Settings (Easiest – Use if phone boots normally) Use this method if you can unlock your phone and access the main menu.

Open the Settings app (gear icon).

If prompted, enter your phone’s lock screen pattern, PIN, or password.

Select Factory data reset .

Tap Erase Everything or Confirm . The phone will restart and begin the reset process. This takes 2–5 minutes. Method 2: Hard Reset via Recovery Mode (Use if phone is frozen, locked, or won’t boot) Use this method if you forgot your password, the screen is frozen, or the phone is stuck on the logo.

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How to Hard Reset TECNO Spark 8 Type below the number you read: 2580