Hi girlie01style, you mean change handset under globe postpaid plan offerings? or you just want to change your phone with new one using your own money?
For Postpaid Plan, it is possible under recontracting offers but you may need to settle fees based on the remaining months of your lock up period plus the handset price. For more info tweet @talk2Globe.
I had my Blackberry phone under Plan 999 since Nov. 2011 and when I called Loyalty, they told me that I can recontract/change my phone on Sept. 2013 and the available FREE handsets under the same plan will be the following:
1.) Samsung Galaxy S3 Mini
2.) Samsung Galaxy Duos
3.) Huawei Ascend P1 (LTE)
*These are FREE only if you're eligible for recontract. Better call Loyalty to know when you will be eligible...