Microblast — Troubleshooting Guide

TABLE OF CONTENTS

• 1. Quick Reference Table
• 2. Speaker Won't Turn On
• 3. Won't Pair Over Bluetooth
• 4. TF Card or USB Playback Issues
• 5. AUX Mode Not Switching Automatically
• 6. Using the AUDIO Output Port
• 7. Call Handling Not Working
• 8. Volume, Track, or EQ Not Responding as Expected
• 9. RGB Lighting Not Changing
• 10. Charging Issues
• 11. If the Problem Persists

1. Quick Reference Table

2. Speaker Won't Turn On

1. Long-press the Power button for a full 2 seconds — a short press won't register.
2. Connect the charging cable to a DC 5V/2A power source and charge for at least 30–60 minutes.
3. Watch for the red charging light; it turns off once fully charged.
4. If there's still no response after charging, this may point to a hardware fault — contact support.

3. Won't Pair Over Bluetooth

1. Long-press the Power button — the indicator light should turn blue and flash, confirming pairing mode.
2. On your phone, search for Bluetooth devices and select "Microblast."
3. Listen for the confirmation prompt once paired — after this, you can start playing music.
4. If it won't pair, power-cycle the speaker and retry, ensuring it isn't already connected to another device.
5. Once connected and playing, the light switches to a blue breathing pattern (work mode) — this is normal, not a fault.

4. TF Card or USB Playback Issues

1. Insert the TF card or USB drive fully into its slot.
2. The speaker should automatically switch to TF or USB mode — if not, short-press the mode/power button to cycle to it manually.
3. If nothing plays, check the files are in a commonly supported audio format, and test the card/drive in another device to rule out corruption.

5. AUX Mode Not Switching Automatically

1. Plug an AUX cable into the AUX input — the speaker should automatically switch to music/AUX mode.
2. If it doesn't switch, reseat the cable at both ends and short-press the power button to manually cycle to AUX mode.
3. Once in AUX mode, control playback and volume from the connected source device.

6. Using the AUDIO Output Port

The AUDIO port lets you use an AUX cable to send Microblast's audio out to another device — this is an output, not an input, so it won't play music sent from another source. If you're trying to play audio from another device, use the AUX (input) port instead.

7. Call Handling Not Working

Short-press the Play/Pause (▷) button once to answer an incoming call, and short-press it again to hang up. This only functions while connected via Bluetooth.

8. Volume, Track, or EQ Not Responding as Expected

A common mix-up: pressing briefly when a long press is needed for track skipping, or vice versa for volume.

9. RGB Lighting Not Changing

Short-press the Lighting (✳) button to cycle through the available light shows, or to turn the lights off entirely. If nothing changes, confirm the speaker is powered on — lighting only activates once the unit is running.

10. Charging Issues

1. Use the supplied cable with a DC 5V/2A power source.
2. Charging: red light flashes. Fully charged: red light turns off.
3. If there's no light activity at all while connected to a known-working charger, try a different cable before assuming a hardware fault.

11. If the Problem Persists

If the issue persists after performing all troubleshooting steps, please raise a support request.

Our support team will assist you further.

Support

• Visit: www.portronics.com
• Support Portal: support.portronics.com