How to Check iOS Firmware based on your iPhone Model (UPDATE)

Refer to your model number of your iPhone, you will be able to identify which iOS firmware file you need to download.

You can find the model number on the iPhone's back cover.

Find out the table below to determine the identifier for your iPhone so you can figure out which iOS firmware file to download.

For example: You need to download iPhone6,2_7.1.2_11D257_Restore.ipsw file for your Global iPhone 5s with model number A1457. 

Generation	Model	Variant	Identifier
iPhone 2G	A1203	GSM	iPhone1,1
iPhone 3G	A1241	GSM	iPhone1,2
	A1324	GSM	iPhone1,2
iPhone 3GS	A1303	GSM	iPhone2,1
	A1325	GSM	iPhone2,1
iPhone 4	A1332	GSM	iPhone3,1
	?	GSM Rev A	iPhone3,2
	A1349	CDMA	iPhone3,3
iPhone 4S	A1387	GSM+CDMA	iPhone4,1
	A1431	GSM+CDMA	iPhone4,1
iPhone 5	A1428	GSM	iPhone5,1
	A1429	GSM+CDMA	iPhone5,2
	A1442	GSM+CDMA	iPhone5,2
iPhone 5s	A1433	GSM	iPhone6,1
	A1533	GSM	iPhone6,1
	A1457	GSM+CDMA	iPhone6,2
	A1518	GSM+CDMA	iPhone6,2
	A1528	GSM+CDMA	iPhone6,2
	A1530	GSM+CDMA	iPhone6,2
iPhone 5c	A1456	GSM	iPhone5,3
	A1532	GSM	iPhone5,3
	A1507	GSM+CDMA	iPhone5,4
	A1516	GSM+CDMA	iPhone5,4
	A1526	GSM+CDMA	iPhone5,4
	A1529	GSM+CDMA	iPhone5,4
iPhone 6	A1549	GSM+CDMA	iPhone7,1
	A1586	CDMA	iPhone7,1
iPhone 6 Plus	A1522	GSM+CDMA	iPhone7,2
	A1524	CDMA	iPhone7,2
iPhone 6s			iPhone8,1
iPhone 6s Plus			iPhone8,2

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