diff --git a/pyghmi/redfish/oem/generic.py b/pyghmi/redfish/oem/generic.py
index d1874ccd..ab4a7bb9 100644
--- a/pyghmi/redfish/oem/generic.py
+++ b/pyghmi/redfish/oem/generic.py
@@ -931,7 +931,7 @@ class OEMHandler(object):
         raise exc.UnsupportedFunctionality(
             'Remote media upload not supported on this platform')
 
-    def update_firmware(self, filename, data=None, progress=None, bank=None):
+    def update_firmware(self, filename, data=None, progress=None, bank=None, otherfields=()):
         # disable cache to make sure we trigger the token renewal logic if needed
         usd = self._do_web_request('/redfish/v1/UpdateService', cache=False)
         upurl = usd.get('MultipartHttpPushUri', None)
@@ -952,7 +952,7 @@ class OEMHandler(object):
         try:
             uploadthread = webclient.FileUploader(
                 self.webclient, upurl, filename, data, formwrap=ismultipart,
-                excepterror=False)
+                excepterror=False, otherfields=otherfields)
             uploadthread.start()
             wc = self.webclient
             while uploadthread.isAlive():
diff --git a/pyghmi/redfish/oem/lenovo/xcc3.py b/pyghmi/redfish/oem/lenovo/xcc3.py
index 37c8495b..3810d065 100644
--- a/pyghmi/redfish/oem/lenovo/xcc3.py
+++ b/pyghmi/redfish/oem/lenovo/xcc3.py
@@ -3,7 +3,8 @@ import json
 import pyghmi.redfish.oem.generic as generic
 import pyghmi.exceptions as pygexc
 import pyghmi.util.webclient as webclient
-
+import zipfile
+import os.path
 
 class OEMHandler(generic.OEMHandler):
 
@@ -82,6 +83,32 @@ class OEMHandler(generic.OEMHandler):
         'password_lockout_period': 'AccountLockoutDuration',
         }
 
+    def update_firmware(self, filename, data=None, progress=None, bank=None, otherfields=()):
+        if not otherfields and bank == 'backup':
+            uxzcount = 0
+            otherfields = {'UpdateParameters': {"Targets": ["/redfish/v1/UpdateService/FirmwareInventory/BMC-Backup"]}}
+            needseek = False
+            if data and hasattr(data, 'read'):
+                if zipfile.is_zipfile(data):
+                    needseek = True
+                    z = zipfile.ZipFile(data)
+                else:
+                    data.seek(0)
+            elif data is None and zipfile.is_zipfile(filename):
+                z = zipfile.ZipFile(filename)
+            if z:
+                for tmpname in z.namelist():
+                    if tmpname.startswith('payloads/'):
+                        uxzcount += 1
+                        if tmpname.endswith('.uxz'):
+                            wrappedfilename = tmpname
+            if uxzcount == 1 and wrappedfilename:
+                filename = os.path.basename(wrappedfilename)
+                data = z.open(wrappedfilename)
+            elif needseek:
+                data.seek(0)
+        super().update_firmware(filename, data=data, progress=progress, bank=bank, otherfields=otherfields)
+
     def get_bmc_configuration(self):
         settings = {}
         acctsrv = self._do_web_request('/redfish/v1/AccountService')
diff --git a/pyghmi/util/webclient.py b/pyghmi/util/webclient.py
index 55835222..079ac7fb 100644
--- a/pyghmi/util/webclient.py
+++ b/pyghmi/util/webclient.py
@@ -107,16 +107,22 @@ def get_upload_form(filename, data, formname, otherfields):
             data = data.read()
         except AttributeError:
             pass
-        form = (b'--' + BND
+        form = b''
+        for ofield in otherfields:
+            tfield = otherfields[ofield]
+            xtra=''
+            if isinstance(tfield, dict):
+                tfield = json.dumps(tfield)
+                xtra = '\r\nContent-Type: application/json'
+            form += (b'--' + BND
+                     + '\r\nContent-Disposition: form-data; '
+                       'name="{0}"{1}\r\n\r\n{2}\r\n'.format(
+                           ofield, xtra, tfield).encode('utf-8'))
+        form += (b'--' + BND
                 + '\r\nContent-Disposition: form-data; '
                   'name="{0}"; filename="{1}"\r\n'.format(
                       formname, ffilename).encode('utf-8'))
         form += b'Content-Type: application/octet-stream\r\n\r\n' + data
-        for ofield in otherfields:
-            form += (b'\r\n--' + BND
-                     + '\r\nContent-Disposition: form-data; '
-                       'name="{0}"\r\n\r\n{1}'.format(
-                           ofield, otherfields[ofield]).encode('utf-8'))
         form += b'\r\n--' + BND + b'--\r\n'
         uploadforms[filename] = form
         return form