itel VISION 1 plus charging problem solution

Описание: itel VISION 1 Plus Charging Problem Solution – Complete Repair Guide

If your itel VISION 1 Plus is not charging, charging slowly, or shows fake charging, the cause can be a faulty charging port, damaged sub-board, bad battery, charging IC issue, or software glitch. Follow these steps to diagnose and fix the problem.

Symptoms to Diagnose
• Phone does not respond when plugged in
• Charging icon appears but battery percentage does not increase
• Phone heats up while charging without actual charging
• Slow charging despite using original cable and adapter

Step-by-Step Solution

Check Charger and Cable
• Use an original itel charger and USB cable rated for at least 5V 2A.
• Test with a known working charger and cable to rule out accessory issues.

Inspect and Clean Charging Port
• Power off the phone.
• Shine a light into the USB-C port and look for debris, lint, or corrosion.
• Use a small soft brush or a toothpick wrapped in cotton to gently remove any dirt.
• Wipe the port contacts with isopropyl alcohol and let it dry completely.

Test Battery Health
• Remove the back cover and disconnect the battery connector.
• Measure battery voltage with a multimeter. A healthy Li-ion cell should read between 3.7V and 4.2V.
• If voltage is very low (below 3.4V) or zero, recharge or replace the battery.

Inspect Charging Sub-Board
• itel VISION 1 Plus has a small sub-board where the USB-C port, microphone, and a few components reside.
• Open the phone by heating the back cover edges and prying it off carefully.
• Remove the mid-frame screws and gently lift the mid-frame.
• Locate the charging sub-board near the bottom. Disconnect its flex cable.
• Visually inspect for burnt components, corrosion, or broken traces. Replace the entire sub-board if any visible damage exists.

Check Charging IC and Related Components
• If the sub-board looks fine, suspect the charging IC or supporting SMD parts on the mainboard.
• Look for swelled capacitors, burnt resistors, or shorted diodes in the charging circuit area.
• Use a multimeter in continuity mode to test for shorts between VBUS and ground.
• If a short circuit is found, identify and replace the faulty component (often a capacitor or diode).
• If no shorts are found, but no voltage reaches the battery connector when plugged in, the PMIC (power management IC) may be faulty. PMIC replacement requires hot-air rework and precision soldering.

Software Calibration and Reset
• Boot the phone and navigate to Settings → Battery → Battery health. If the reading is inaccurate, calibrate by charging to 100%, then letting it drain to 0%, and charging again to full.
• Perform a factory reset after backing up data: Settings → System → Reset → Factory data reset. This can fix fake charging caused by software bugs.
• Flash the latest official firmware using the itel flash tool if the issue started after a failed update or custom ROM installation.

Final Testing

Reassemble the phone completely, reconnecting all flex cables and screws.

Power on and plug in the charger. Verify that the charging icon appears and the battery percentage rises steadily.

Monitor temperature – the phone should not heat excessively while charging.

If charging is still inconsistent, consider replacing the battery and sub-board together to ensure compatibility.

Pro Tips
• Always disconnect the battery before replacing internal components to avoid short circuits.
• Use OEM or high-quality replacement parts to prevent recurring issues.
• Avoid inserting metal tools in the charging port; debris removal should be gentle.

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