Applies to
Dell Inspiron 15 (3521) 15.6" Notebook with Dell Wireless 1704/1708 network card.



Requirements

Author
Dell Inc, Broadcom Corporation.

FileName
Network_Driver_XT97T_WN32_7.35.333.0_A04.EXE

FileSize
99.1 MB

Driver Date & Version
12/01/2015 (ver. 7.35.333.0, A04)

Description

This is the latest of the 4 network related drivers available for Dell Inspiron 15 model 3521. Here are the rest of the models this driver supported:

  1. Inspiron 14R 5421
  2. Inspiron 14R 5437
  3. Inspiron 15R 5521
  4. Inspiron 15R 5537
  5. Inspiron 17R 5721
  6. Inspiron 17R 5737
  7. Inspiron 3148
  8. Inspiron 3421
  9. Inspiron 3437
  10. Inspiron 3441
  11. Inspiron 3442
  12. Inspiron 3443
  13. Inspiron 3521
  14. Inspiron 3537
  15. Inspiron 3541
  16. Inspiron 3542
  17. Inspiron 3543
  18. Inspiron 3737
  19. Inspiron 5348
  20. Inspiron 5451
  21. Inspiron 5458
  22. Inspiron 5551
  23. Inspiron 5558
  24. Inspiron 5748
  25. Inspiron 5749
  26. Inspiron 5758
  27. Inspiron 7347
  28. Inspiron 7348 2-in-1
  29. Inspiron M431R 5435
  30. Inspiron M531R 5535
  31. Inspiron M731R 5735
  32. Vostro 14 3449
  33. Vostro 15 3549
  34. Vostro 2421
  35. Vostro 2521
  36. Vostro 3340
  37. Vostro 3445
  38. Vostro 3446
  39. Vostro 3458
  40. Vostro 3546
  41. Vostro 3558

If you are interested on the rest of the other older driver, here is the link.

However please be noted that Dell has updated the drivers so officially this driver will only supported the following Windows version:

  1. Windows 8, 64-bit
  2. Windows 10, 64-bit
  3. Windows 7, 64-bit
  4. Windows 8.1, 64-bit

WiFi hardware supported as follow:

  1. Dell Wireless 1708 802.11b/g/n (2.4GHz)
  2. Dell Wireless 1708 Wi-Fi+ Bluetooth
  3. Dell Wireless 1708 WiFi
  4. Dell Wireless 1708 WiFi Driver

I tried extracted the downloaded driver file and found two folders namely "Windows10-x64" and "Windows10-x86", this indicated both 64bit and 32bit (x86) are supported. Also one useful information is the driver information file contains reference to "Broadcom Corporation." and its wireless chipset "BCM43XX". So at least we know the chipset used in your Dell Inspiron 15 3521 and make searching for other drivers easier in case this driver does not work.

Installation wise, download the driver file (EXE) and just run it. The driver install shield program (Dell Update Package) will prompt for install of Dell Wireless 1704/1708 WiFi Driver. Follow on screen instructions to finish the installation. A restart of your Inspiron notebook is required.

Download Inspiron 15 3521 Windows 7 32-bit WiFi Driver here.

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