Inspiron 15 3521 Windows 7 32-bit WiFi Driver

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

Author
Dell Inc, Broadcom Corporation.

FileSize
99.1 MB

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.