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SD Card Troubleshooting & Formatting Guidelines — Teacher Tablet

SD Card Troubleshooting & Formatting Guidelines — Teacher Tablet

Issue Symptoms / Description Basic Troubleshooting Steps Escalation Criteria
SD Card Not Detecting Tablet does not recognise or display SD card. Shows 'No SD card detected' or 'Insert SD card.' 1. Go to Settings → Storage → SD Card.
2. Remove & reinsert the SD card.
3. Test SD card on another device.
4. If it works elsewhere → tablet SD slot issue.
5. If not detected anywhere → SD card faulty.
6. In both cases transfer ticket to INFRA TEAM		 SD slot issue → Escalate to IT Infra. SD card faulty
Resources Not Downloading Download fails with 'Download failed.' One Click not completing. Downloads stop midway. 1. Ensure SD card is detected.
2. Confirm SD card set as Portable Storage.
3. Check if storage is full.
4. If set as internal → format as portable.
5. Reopen Teacher App → One Click → Download Resources.
6. If issue is still not getting resolved transfer ticket to TECH TEAM		 If SD card repeatedly fails despite formatting → Replace SD card. If slot not reading SD → Escalate to TECH TEAM
SD Card Corrupted Error 'SD card corrupted' or 'Unsupported format.' 1. Verify under Settings → Storage.
2. Test on another device.
3. If issue persists → Format SD card (inform teacher data will be erased).
4. Set as Portable Storage.
5. Reopen Teacher App → One Click → Download Resources.
6. If card is still not getting set as portal or not working then send the ticket to INFRA TEAM.
If card corruption is repeated for the same device. Transfer ticket to TECH TEAM.		 Still corrupted after format → Replace SD card → Send ticket to INFRA TEAM. Frequent corruption (2+ times) → Send ticket to TECH TEAM
SD Card Full Insufficient storage' message. Resources not downloading. One Click fails midway. 1. Check storage under Settings → Storage.
2. Delete unnecessary files.
3. If full, confirm with content/product team before formatting.
4. Format SD card → Set as Portable → Reload via One Click.
5. Still SD card is showing full then transfer the ticket to INFRA TEAM.		 Confirmed full but resources essential → Escalate to INFRA TEAM
SD Card Showing as Internal Storage Insufficient storage' even when SD has free space. SD card configured as internal instead of portable. 1. Go to Settings → Storage → SD Card → 3 dots → Storage Settings.
2. Tap Format SD Card → Format as Portable.
3. Reopen Teacher App → One Click → Download Resources.
4. If Card is still not getting set as portal then transfer the ticket to INFRA TEAM.		 If same issue recurs after formatting → Replace SD card.
Repeated SD Card Corruption Cases Same SD card corrupted more than twice. 1. Do not format the old one again.
2. Replace SD card.
3. Transfer the ticket to TECH TEAM		 Mandatory escalation to IT Infra after replacement.




SD Card Troubleshooting & Formatting Guidelines — Teacher Tablet

1. Common SD Card–Related Issues

Issue

Description

SD card not detecting

The tablet does not recognise or display the SD card.

Resources not downloading

Resources fail to download, displaying “Download failed” 

SD card corrupted

The tablet shows “SD card corrupted.

SD card full



SD card in internal Storage

Tablet displays “Insufficient storage” or downloads stop midway due to a lack of space.


In settings, the SD card will be showing as internal storage instead of Portable Storage

2. General Troubleshooting Steps

🔹 1. Check if the SD Card is Detected

  • Go to Settings → Storage → SD Card.

  • If the tablet shows “No SD card detected” or “Corrupted SD card”, it’s likely damaged.

  • Try removing and reinserting the card — ensure it’s properly inserted in the SD card slot.

🔹 2. Try Accessing SD Card Files

  • Open File Manager / My Files → SD Card.

  • If it takes too long to load, shows blank folders, or displays “Can’t read SD card”, the card may be corrupted.

🔹 3. Test with Another Device 

  • Remove the SD card and insert it into another tablet, phone, or laptop using a card reader.

  • If it doesn’t open or show data there either, the issue is with the SD card, not the tablet.

🔹 4. Remove and Reinsert

  • Remove the SD card, and reinsert it properly.

  • Check if it’s detected under Settings → Storage.

🔹 5. Check on Another Device

  • Insert the SD card into another tablet, phone, or laptop using a card reader.

  • If it works fine there, the issue could be with the tablet’s SD card slot — escalate to the IT Infrastructure team as a hardware issue.

🔹 6. Format the SD Card (Only if Necessary)

 

Proceed only if data backup is done or not required. In the Teacher app, perform one click.

  • Go to Settings → Storage → SD Card → Format SD card.

  • Confirm and format the SD card.

  • After formatting, set it as portable storage (in the notification bar SD card set up option is visible).

  • Reopen Teacher App → click continue →One click→ Download Resources to reload content.

🔹 7. Replace the SD card

  • If the tablet still displays “Corrupted SD card”, “Unsupported format”, or fails to detect it after formatting:


    • Replace it with a new, good-quality SD card.

    • Coordinate replacement through the IT Infrastructure team.

3. Conditions to Format SD Card

Formatting should only be done if one or more of the following conditions are met:

  • SD card shows as “Corrupted” or “Damaged” in Storage settings.

  • SD card is full and requires content reload after confirmation from the content/product team.

  • SD card in internal Storage 

⚠️ Note: Inform the teacher before formatting that this process will erase all downloaded content, and resources will need to be re-downloaded after setup.



4. SD card in internal Storage Issue

 

  • Select the SD card.

  • Tap the three dots in the top-right corner.

  • Choose Storage Settings.

  • Select Format SD card.



5. Cross-Verification Questions to Ask the Customer

Before or during troubleshooting, confirm the following details with the teacher:

  • Has any other teacher’s login been used on the affected tablet?

  • Was the SD card removed or reinserted recently?

  • Have you faced this issue before on the same device?

  • Did the issue occur after performing One Click or while doing One Click?

  • Have you tried downloading any other files (non-resource content) onto the SD card?

  • Did the tablet or SD card receive any recent update, app installation, or formatting prompt before the issue began?

  • Did the tablet switch off suddenly, lose power, or freeze during SD card operations?

  • Has the SD card been used in any other device before being inserted into this tablet?

 

🔹 8. Escalate Repeated SD Card Corruption Cases

If you find that a particular SD card is getting corrupted more than two times, even after troubleshooting and formatting, it may indicate an underlying hardware or compatibility issue.

In such cases, follow the steps below:

  • Replace the SD card with a new one (coordinate with the IT Infrastructure Team for a replacement).

  • Ask the user not to format the affected SD card again.

  • Send the affected SD card to the Bangalore office for further investigation.

  • Developer Shreyas will be checking and analyzing these SD cards to identify the root cause.